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GC Accessories > Ultra-High Purity Regulators

Browse our complete line of Ultra-High Purity Regulators

Labware > Ultra-High Purity Regulators

Browse our complete line of Ultra-High Purity Regulators

Chromatography Columns > HPLC & UHPLC Columns

Browse our complete line of HPLC & UHPLC Columns

Ultra-High Purity Chrome-Plated Brass Line Gas Regulator

...Ultra-High Purity Chrome-Plated Brass Line Gas Regulator ... Supplies & Accessories , GC Accessories , Ultra-High Purity Regulators...

Replacement Filters for UltraLine UHPLC In-Line Filter

...Replacement Filters for UltraLine UHPLC In-Line Filter...

Restek Super Clean Ultra-High Capacity Hydrocarbon Filter

...Restek Super Clean Ultra-High Capacity Hydrocarbon Filter...

Click-On In-line Super Clean Ultra-High Capacity Hydrocarbon Trap

...Click-On In-line Super Clean Ultra-High Capacity Hydrocarbon Trap...

Ultra Guard Cartridges

...Ultra Guard Cartridges ... and stationary phase (e.g., Ultra C18)....

Ultra-Clean Resin

Equivalent to XAD-2 Resin—Exclusively from Restek!

...Frequently Asked QuestionsIs Restek's Ultra-Clean resin really the same as XAD-2 resin compounds.Does Restek's Ultra-Clean resin need to be baked-out prior to use? No. Restek's resin ... Ultra-Clean Resin ... Ultra-Clean resin typically eliminates the hassle of cleaning and testing resin for air...

Restek Super Clean Ultra-High Capacity Moisture Filter

...Restek Super Clean Ultra-High Capacity Moisture Filter ... Restek Super Clean ultra-high capacity moisture filter cartridges feature easy...

Restek Super Clean Ultra-High Capacity Oxygen Filter

...Restek Super Clean Ultra-High Capacity Oxygen Filter ... Restek Super Clean ultra-high capacity oxygen filter cartridges feature easy...

Dual-Stage Ultra-High Purity Stainless Steel Gas Regulators

with CGA Fittings

...UHP stainless steel regulators are the standard for ultra-high-purity and corrosion ... Dual-Stage Ultra-High Purity Stainless Steel Gas Regulators ... Supplies & Accessories , GC Accessories , Ultra-High Purity Regulators...

Single-Stage Ultra-High Purity Stainless Steel Gas Regulators

with CGA Fittings

...UHP stainless steel regulators are the standard for ultra-high-purity and corrosion ... Single-Stage Ultra-High Purity Stainless Steel Gas Regulators ... Supplies & Accessories , GC Accessories , Ultra-High Purity Regulators...

Dual-Stage Ultra-High Purity Stainless Steel Gas Regulators

with International Fittings

...UHP stainless steel regulators are the standard for ultra-high-purity and corrosion ... Dual-Stage Ultra-High Purity Stainless Steel Gas Regulators ... Supplies & Accessories , GC Accessories , Ultra-High Purity Regulators...

Single-Stage Ultra-High Purity Stainless Steel Gas Regulators

with International Fittings

...UHP stainless steel regulators are the standard for ultra-high-purity and corrosion ... Single-Stage Ultra-High Purity Stainless Steel Gas Regulators ... Supplies & Accessories , GC Accessories , Ultra-High Purity Regulators...

Ultra Carbamate Columns

...Restek chemists developed the Ultra Carbamate column specifically for carbamates analysis . The column is compatible with fluorescence or LC-MS detection.* An Ultra Carbamate column can process as many ... ultra_co_hplc ... Ultra Carbamate Columns...

Flexible Stainless Steel Hoses

...Supplies & Accessories , GC Accessories , Ultra-High Purity Regulators...

CGA Fittings

...Supplies & Accessories , Labware , Ultra-High Purity Regulators...

Ultra Bulk Packing Materials (5 µm)

Use our bulk packing materials to pack your own columns!

...Ultra Bulk Packing Materials (5 µm)...

UltraLine UHPLC In-Line Filter

...UltraLine UHPLC In-Line Filter...

Dual-Stage Ultra-High Purity Chrome-Plated Brass Gas Regulators

with International Fittings

...Dual-Stage Ultra-High Purity Chrome-Plated Brass Gas Regulators ... Supplies & Accessories , GC Accessories , Ultra-High Purity Regulators...

Single-Stage Ultra-High Purity Chrome-Plated Brass Gas Regulators

with International Fittings

...Single-Stage Ultra-High Purity Chrome-Plated Brass Gas Regulators ... Supplies & Accessories , GC Accessories , Ultra-High Purity Regulators...

Dual-Stage Ultra-High Purity Chrome-Plated Brass Gas Regulators

with CGA Fittings

...Dual-Stage Ultra-High Purity Chrome-Plated Brass Gas Regulators ... Supplies & Accessories , GC Accessories , Ultra-High Purity Regulators...

Single-Stage Ultra-High Purity Chrome-Plated Brass Gas Regulators

with CGA Fittings

...Single-Stage Ultra-High Purity Chrome-Plated Brass Gas Regulators ... Supplies & Accessories , GC Accessories , Ultra-High Purity Regulators...

Click-On In-line Super Clean Ultra-High Capacity Moisture Trap

...Click-On In-line Super Clean Ultra-High Capacity Moisture Trap...

Click-On In-line Super Clean Ultra-High Capacity Oxygen Trap

...Click-On In-line Super Clean Ultra-High Capacity Oxygen Trap...

Ultra Quat Columns

...The Ultra line represents Restek’s broadest selection of stationary phases on a single silica ... ultra_co_hplc ... Ultra Quat Columns...

Ultra Amino Columns (USP L8)

...The Ultra line represents Restek’s broadest selection of stationary phases on a single silica ... ultra_co_hplc, structure_lc_amino.png ... Ultra Amino Columns...

Ultra Silica Columns (USP L3)

...The Ultra line represents Restek’s broadest selection of stationary phases on a single silica ... ultra_co_hplc, structure_lc_silica.png ... Ultra Silica Columns...

Ultra Cyano Columns (USP L10)

...The Ultra line represents Restek’s broadest selection of stationary phases on a single silica ... ultra_co_hplc, structure_lc_cyano.png ... Ultra Cyano Columns...

Ultra C1 Columns (USP L13)

...The Ultra line represents Restek’s broadest selection of stationary phases on a single silica ... ultra_co_hplc, structure_lc_c1.png ... Ultra C1 Columns...

Ultra C4 Columns (USP L26)

...The Ultra line represents Restek’s broadest selection of stationary phases on a single silica ... ultra_co_hplc, structure_lc_c4.png ... Ultra C4 Columns...

Ultra Aromax Columns (USP L11)

...The Ultra line represents Restek’s broadest selection of stationary phases on a single silica , these columns are designed for selective and reliable HPLC applications.Ultra Aromax is a unique reversed ... ultra_co_hplc, structure_lc_aromax.png ... Ultra Aromax Columns...

Ultra Biphenyl Prep Columns

... and preparative-scale columns packed with many of our popular Ultra, Allure, Pinnacle DB, and Viva bonded phases ... Ultra Biphenyl Prep Columns...

Ultra Silica HPLC Prep Columns

... and preparative-scale columns packed with many of our popular Ultra, Allure, Pinnacle DB, and Viva bonded phases ... Ultra Silica HPLC Prep Columns...

Ultra Cyano HPLC Prep Columns

... and preparative-scale columns packed with many of our popular Ultra, Allure, Pinnacle DB, and Viva bonded phases ... Ultra Cyano HPLC Prep Columns...

Ultra IBD HPLC Prep Columns

... and preparative-scale columns packed with many of our popular Ultra, Allure, Pinnacle DB, and Viva bonded phases ... Ultra IBD HPLC Prep Columns...

Ultra PFP Propyl Prep Columns

... and preparative-scale columns packed with many of our popular Ultra, Allure, Pinnacle DB, and Viva bonded phases ... Ultra PFP Propyl Prep Columns...

Ultra C18 HPLC Prep Columns

... and preparative-scale columns packed with many of our popular Ultra, Allure, Pinnacle DB, and Viva bonded phases ... Ultra C18 HPLC Prep Columns...

Ultra C8 HPLC Prep Columns

... and preparative-scale columns packed with many of our popular Ultra, Allure, Pinnacle DB, and Viva bonded phases ... Ultra C8 HPLC Prep Columns...

Cylinder Holder, Bench Mounted

...Supplies & Accessories , GC Accessories , Ultra-High Purity Regulators...

Protocol Wall Mounts for Gas Regulators

...Supplies & Accessories , GC Accessories , Ultra-High Purity Regulators...

Hydrogen Flashback Arrestor

...Supplies & Accessories , GC Accessories , Ultra-High Purity Regulators...

MINICYL Regulator

...Supplies & Accessories , GC Accessories , Ultra-High Purity Regulators...

Cylinder Holders, Wall Mounted

...Supplies & Accessories , GC Accessories , Ultra-High Purity Regulators...

Ultra IBD Columns (USP L68)

Specialized Columns for Mixed Polar and Nonpolar Compounds

...The Ultra line represents Restek’s broadest selection of stationary phases on a single silica ... ultra_co_hplc, structure_lc_ibd.png ... Ultra IBD Columns...

Ultra C18 Columns (USP L1)

Excellent for a wide range of analyses

...The Ultra line represents Restek’s broadest selection of stationary phases on a single silica ... ultra_co_hplc, structure_lc_c18.png ... Ultra C18 Columns...

Ultra Biphenyl Columns (USP L11)

...The Ultra line represents Restek’s broadest selection of stationary phases on a single silica ... ultra_co_hplc, structure_lc_biphenyl.png ... Ultra Biphenyl Columns...

Ultra PFP Propyl Columns (USP L43)

...The Ultra line represents Restek’s broadest selection of stationary phases on a single silica ... ultra_co_hplc, structure_lc_pfp-propyl.png ... Ultra PFP Propyl Columns...

Ultra C8 Columns (USP L7)

Excellent for a wide range of analyses

...The Ultra line represents Restek’s broadest selection of stationary phases on a single silica ... ultra_co_hplc, structure_lc_c8.png ... Ultra C8 Columns...

Ultra Aqueous C18 Columns (USP L1)

...The Ultra line represents Restek’s broadest selection of stationary phases on a single silica ... ultra_co_hplc, structure_lc_aqueous-c18.png ... Ultra Aqueous C18 Columns...

UltraShield UHPLC PreColumn Filter

...UltraShield UHPLC PreColumn Filter...

Ultra Aqueous C18 HPLC Prep Columns

... and preparative-scale columns packed with many of our popular Ultra, Allure, Pinnacle DB, and Viva bonded phases ... Ultra Aqueous C18 HPLC Prep Columns...

Merlin Microseal Adaptor

for Thermo TRACE Ultra GCs

... of these requirements. No adaptor is required for the Thermo TRACE Ultra inlet. Installation is simple, requiring...

Automatic Switchover System for Noncorrosive Gases

...Supplies & Accessories , GC Accessories , Ultra-High Purity Regulators...

Rxi-5ms Columns (fused silica)

low-polarity phase; Crossbond diphenyl dimethyl polysiloxane

...What do Rxi columns mean to you? Three things:Ultra-low bleed , ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance ... ZB-5, ZB-5msi, HP-5ms Semivolatiles, HP-5ms, HP-5msUI, DB-5, Ultra-2, CP-Sil 8 CB ... on the market.Tested and guaranteed for ultra-low bleed; improved signal-to-noise ratio for better...

Rxi-1ms Columns (fused silica)

nonpolar phase; Crossbond dimethyl polysiloxane

...What do Rxi columns mean to you? Three things:Ultra-low bleed , ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance ... HP-1ms, HP-1msUI, DB-1ms, DB-1msUI, Ultra-1, VF-1ms, ZB-1, ZB-1ms ... for ultra-low bleed; improved signal-to-noise ratio for better sensitivity and mass spectral integrity...

Septa (Plug)

for SRI GCs

...Thermolite Plus Septa Usable to 350 °C inlet temperature.* Ultra-low bleed . Packaged in ultra-clean blister packs. Each batch GC-FID tested. Restek Thermolite...

Sulfinert-Treated Regulators (Dual Stage & Single Stage)

...Supplies & Accessories , GC Accessories , Ultra-High Purity Regulators...

Plunger Seals

for Thermo HPLC Systems

...Use graphite-filled PTFE for organic solvents; use ultra-high molecular weight polyethylene...

Septa (11 mm)

for Bruker/Varian 1075/1077 Injectors

...Thermolite Plus Septa Usable to 350 °C inlet temperature.* Ultra-low bleed . Packaged in ultra-clean blister packs. Each batch GC-FID tested. Restek Thermolite...

Septa (10/11 mm)

for Bruker/Varian 1078/1079 Injectors

...Thermolite Plus Septa Usable to 350 °C inlet temperature.* Ultra-low bleed . Packaged in ultra-clean blister packs. Each batch GC-FID tested. Restek Thermolite...

Septa (11 mm)

for Agilent 5880A/5890/6850/6890/7890 GCs with S/SL or PTV inlets

...Thermolite Plus Septa Usable to 350 °C inlet temperature.* Ultra-low bleed . Packaged in ultra-clean blister packs. Each batch GC-FID tested. Restek Thermolite...

Septa (9.5 mm)

for SRI GCs equipped with a heated inlet

...Thermolite Plus Septa Usable to 350 °C inlet temperature.* Ultra-low bleed . Packaged in ultra-clean blister packs. Each batch GC-FID tested. Premium Non-Stick BTO...

Septa (Plug)

for Shimadzu GCs

...Thermolite Plus Septa Usable to 350 °C inlet temperature.* Ultra-low bleed . Packaged in ultra-clean blister packs. Each batch GC-FID tested. Premium Non-Stick BTO...

Septa (11 mm)

for PerkinElmer GCs

...Thermolite Plus Septa Usable to 350 °C inlet temperature.* Ultra-low bleed . Packaged in ultra-clean blister packs. Each batch GC-FID tested. Premium Non-Stick BTO...

Septa (9.5/10 mm)

for Agilent 5700/5880 GCs

...Thermolite Plus Septa Usable to 350 °C inlet temperature.* Ultra-low bleed . Packaged in ultra-clean blister packs. Each batch GC-FID tested. Premium Non-Stick BTO...

Septa (5 mm)

for Agilent On-Column Injection

...Thermolite Plus Septa Usable to 350 °C inlet temperature.* Ultra-low bleed . Packaged in ultra-clean blister packs. Each batch GC-FID tested. Premium Non-Stick BTO...

Septa (9.5 mm)

for Finnigan (TMQ) GCs

...Thermolite Plus Septa Usable to 350 °C inlet temperature.* Ultra-low bleed . Packaged in ultra-clean blister packs. Each batch GC-FID tested. Premium Non-Stick BTO...

Septa (9.5/10 mm)

for Bruker/Varian Packed Column Injectors

...Thermolite Plus Septa Usable to 350 °C inlet temperature.* Ultra-low bleed . Packaged in ultra-clean blister packs. Each batch GC-FID tested. Premium Non-Stick BTO...

Septa (9 mm)

for Bruker/Varian 1177 Injectors

...Thermolite Plus Septa Usable to 350 °C inlet temperature.* Ultra-low bleed . Packaged in ultra-clean blister packs. Each batch GC-FID tested. Premium Non-Stick BTO...

Septa (9.5 mm)

for Tracor 550, 560 GCs

...Thermolite Plus Septa Usable to 350 °C inlet temperature.* Ultra-low bleed . Packaged in ultra-clean blister packs. Each batch GC-FID tested. Premium Non-Stick BTO...

Septa (11.5 mm)

for Tracor 540 GCs

...Thermolite Plus Septa Usable to 350 °C inlet temperature.* Ultra-low bleed . Packaged in ultra-clean blister packs. Each batch GC-FID tested. Premium Non-Stick BTO...

Septa (12.7 mm)

for Tracor 220, 222 GCs

...Thermolite Plus Septa Usable to 350 °C inlet temperature.* Ultra-low bleed . Packaged in ultra-clean blister packs. Each batch GC-FID tested. Premium Non-Stick BTO...

Standard High Pressure Seal

for PerkinElmer HPLC Systems

...Use ultra-high molecular weight polyethylene (UHMWPE) for increased resistance to abrasion...

Low Pressure Seal

for PerkinElmer HPLC Systems

...Use ultra-high molecular weight polyethylene (UHMWPE) for increased resistance to abrasion...

Plunger Seal, Superseal

for Thermo HPLC Systems

...Use ultra-high molecular weight polyethylene (UHMWPE) for increased resistance to abrasion...

Septa (9 mm, 9.5 mm, 11 mm, 17 mm)

for Thermo Scientific GCs

...Thermolite Plus Septa Usable to 350 °C inlet temperature.* Ultra-low bleed . Packaged in ultra-clean blister packs. Each batch GC-FID tested. Premium Non-Stick BTO...

Cleaned Copper Tubing

... residual organics.Note: While this tubing is ultra clean, it does not meet the requirements...

High-Capacity Moisture Trap

...Purged with ultra-high-purity helium; ready to use with any carrier gas including...

Plunger Seals

for Waters HPLC Systems

...Use graphite-filled PTFE for organic solvents; use ultra-high molecular weight polyethylene...

Capillary-Grade Hydrocarbon Trap

....Purged with ultra-high-purity helium; ready to use with any carrier gas including hydrogen...

Parker Nitrogen Gas Generators

...Produces ultra-pure nitrogen (up to 99.9999%).Requires only a compressed air...

Rxi-17 Columns (fused silica)

midpolarity phase; Crossbond diphenyl dimethyl polysiloxane

...What do Rxi columns mean to you? Three things:Ultra-low bleed , ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance...

Rxi-5HT Columns (fused silica)

low-polarity phase; diphenyl dimethyl polysiloxane

...What do Rxi columns mean to you? Three things:Ultra-low bleed , ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance...

Rxi-624Sil MS Columns (fused silica)

midpolarity Crossbond phase

...What do Rxi columns mean to you? Three things:Ultra-low bleed , ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance...

Rxi-1HT Columns (fused silica)

nonpolar phase; dimethyl polysiloxane

...What do Rxi columns mean to you? Three things:Ultra-low bleed , ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance...

Rxi-17Sil MS Columns (fused silica)

midpolarity Crossbond phase

...What do Rxi columns mean to you? Three things:Ultra-low bleed , ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance...

Rxi-17Sil MS Secondary Columns for GCxGC (fused silica)

midpolarity Crossbond phase

...What do Rxi columns mean to you? Three things:Ultra-low bleed , ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance...

Rxi-1ms Secondary Columns for GCxGC (fused silica)

nonpolar phase; Crossbond dimethyl polysiloxane

...What do Rxi columns mean to you? Three things:Ultra-low bleed , ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance...

Rxi-5Sil MS Secondary Columns for GCxGC (fused silica)

low-polarity phase; Crossbond 1,4-bis(dimethylsiloxy)phenylene dimethyl polysiloxane

...What do Rxi columns mean to you? Three things:Ultra-low bleed , ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance...

Rxi-65TG Columns (fused silica)

High-polarity Crossbond phase

...What do Rxi columns mean to you? Three things:Ultra-low bleed , ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance...

Rxi-35Sil MS Columns (fused silica)

midpolarity Crossbond phase

...What do Rxi columns mean to you? Three things:Ultra-low bleed , ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance...

Rxi-XLB Columns (fused silica)

low-polarity proprietary phase

...What do Rxi columns mean to you? Three things:Ultra-low bleed , ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance...

Parker Zero Air Generators

...Turn in-house compressed air into ultra-pure air (...

Parker Nitrogen Gas Generators for LC-MS

...Turn compressed air into ultra-pure nitrogen (up to 99.5%).Flows from 1 to 44...

Aldehyde-Ketone-DNPH TO-11A Calibration Mix (15 components)

... of interest in most ambient air work. A 150 x 4.6 mm Ultra C18 HPLC column (cat.# 9174565) is optimal ... ambient air work.Fast analysis — Ultra C18 HPLC column separates 15 aldehydes/ketones in 16...

Hub-Cap Filter Kit for 4 L Bottles

... 0.45 µm filter membrane; 1/4" OD x 1/8" ID ultra-chemical resistant, FEP (fluorinated ethylene...

Thermal Desorption Tubes

(Calibration)

... (ULTRA and UNITY), PerkinElmer, and Shimadzu thermal desorbers. Packed tubes come with a report detailing...

Rxi-5Sil MS Columns (fused silica)

low-polarity phase; Crossbond 1,4-bis(dimethylsiloxy)phenylene dimethyl polysiloxane

...What do Rxi columns mean to you? Three things:Ultra-low bleed , ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance...

Rxi-XLB Secondary Columns for GCxGC (fused silica)

low polarity proprietary phase

...What do Rxi columns mean to you? Three things:Ultra-low bleed , ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance...

Q-sep QuEChERS dSPE Tubes for Extract Cleanup

Fast, Simple Sample Prep for Multiresidue Pesticide Analysis

....Ready-to-use tubes, no glassware required.Pre-weighed, ultra-pure sorbents.Support...

Rinsed and Cleaned 304 Stainless Steel Tubing

....Proprietary cleaning process used to remove residual organics.Note: While this tubing is ultra clean...

Q-sep QuEChERS Extraction Salts

... into tubes to prevent spills.Ready-to-use tubes, no glassware required.Pre-weighed, ultra...

Thomson SINGLE StEP Nano Filter Vials

...Ultra-low dead volume allows you to filter as little as 10 μL of sample and still...

Septa (12.7 mm)

for Thermo TRACE PTV Inlets

... to use.Packaged in ultra-clean blister packs.**Each batch GC-FID tested.Bleed...

Sample Cylinder Valves (Stainless Steel & Sulfinert Treated)

... high-pressure and ultra-high-pressure sample cylinders. An outage tube or dip tube provides a headspace...

Thermal Desorption Tubes

(Empty)

... (ULTRA and UNITY), PerkinElmer, and Shimadzu thermal desorbers. Packed tubes come with a report detailing...

Vu2 Union Connectors

.... These ultra-strong connections will not unexpectedly disconnect under temperature changes, vibrations...

LC Multiresidue Pesticide Standard #7 (7 components)

Organonitrogen Compounds

... for world-class LC-MS/MS multiresidue pesticide analysis: reference and internal standards, Ultra...

LC Multiresidue Pesticide Standard #8 (Hydramethylnon)

Organonitrogen Compounds

... for world-class LC-MS/MS multiresidue pesticide analysis: reference and internal standards, Ultra...

LC Multiresidue Pesticide Standard #9 (7 components)

Carbamate/Uron Compounds

... for world-class LC-MS/MS multiresidue pesticide analysis: reference and internal standards, Ultra...

LC Multiresidue Pesticide Standard #10 (Carbendazim)

Carbamate/Uron Compounds

... for world-class LC-MS/MS multiresidue pesticide analysis: reference and internal standards, Ultra...

UltraShield UHPLC Precolumn Filter Instruction Sheet (PDF 161kB)

...UltraShield UHPLC Precolumn Filter cat.# 24995, 24996, 24997, 25809, 25810, 25811 Ultra it will be replaced. Repeated installation of the same UltraShield filter in multiple columns and instruments may...

Multi-task with an Ultra IBD Column (PDF 130kB)

... functionality into an alkyl phase. The Ultra IBD column is an example of such a polar embedded column. Compared mobile phases. Degree of Polarity The Ultra IBD column exhibits a high degree of polarity relative...

Restek Ultra-Clean Resin (PDF 495kB)

...Restek Ultra-Clean Resin A Great Alternative to XAD-2 Resin for Sampling Semivolatiles Although 0010 Semivolatiles in Stationary Source Emissions Is Restek’s Ultra-Clean resin really the same as XAD...

Optimized RP-HPLC Method for Hydroxybenzoic Acids Balanced Retention for a Range of Polarities, Using an Ultra Aqueous C18 Column

... Useful retention of more polar and less polar analytes. Ultra Aqueous C18 phase[2]), and on an Ultra Aqueous C18 column. Our objective was to find the optimum stationary phase ... , creating differences in overall polarity and solubility. The unique bonding chemistry of the Ultra Aqueous ... Ultra, aqueous c18, hydroxybenzoic acoids, hydroxyl groups, analgesics...

HPLC Analysis of Glucosinolates in Vegetable Extracts without Ion Pairing Using an Ultra Aqueous C18 Column (PDF 675kB)

... Without Ion Pairing Using an Ultra Aqueous C18 Column Glucosinolates are a naturally occurring set standard using an Ultra Aqueous C18 column shows good peak shape without the use of ion-pairing reagents...

Excellent LC-MS Separation of Penicillins and Cephalosporins Using Ultra IBD Columns (PDF 759kB)

... Ultra IBD Columns Introduction Antibiotics are the most widely used medications in the world. Whether related compounds. Restek’s Ultra IBD column is better able to resolve these compounds using polar...

UHPLC Filters: Protect Your Column and Chromatographic Performance (PDF 476kB)

...UHPLC Filters Protect Your Column and Chromatographic Performance UltraShield UHPLC Precolumn to band broadening. UltraLine UHPLC In-Line Filter • Cost-effective protection for UHPLC systems...

Trident LC Column Protection System: Redesigned to be more rugged and easier to use! (PDF 1187kB)

... 941650210 Pinnacle DB Silica Guard Cartridge 941050212 941050210 Ultra Guard Cartridges Ultra C18 Guard Cartridge 917450212 917450210 Ultra C8 Guard Cartridge 910350212 910350210 Ultra C4 Guard Cartridge...

Analyze Carbamate Pesticides in a Fraction of the Time and Boost Productivity (PDF 787kB)

... Application: Carbamate Pesticides on an Ultra Carbamate LC Column Carbamate pesticides are widely used , but traditional methods—such as EPA Method 531—require analysis times of over 20 minutes. Using an Ultra...

Inlet Supplies for Thermo TRACE Ultra GCs (PDF 2084kB)

... for Thermo TRACE Ultra GCs Septum Diameter 50-pk. cat.# 100-pk. cat.# Premium Non-Stick BTO Septa (usable to 330 °C inlet temp.) 17 mm, with CenterGuide 27096 27097 Septa (17 mm) Thermo TRACE Ultra...

Restek LC Guard Column Selector: How to Find the Right Guard Fast (PDF 2037kB)

... instrumentation. • Designed for use with legacy HPLC columns (Ultra, Pinnacle II, Pinnacle DB, Allure, Viva with traditional HPLC instrumentation. • Designed for use with legacy HPLC columns (Ultra, Pinnacle II, Pinnacle...

New Thermolite Plus and BTO Septa from Restek (PDF 703kB)

.... • Packaged in ultra-clean blister packs. • Each batch GC-FID tested. GC Accessories Learn more at www packaged in precleaned glass jars. • Usable to 350 °C inlet temperature.* • Ultra-low bleed minimizes...

Thermal Desorption: A Practical Applications Guide: I. Environmental Air Monitoring and Occupational Health & Safety (PDF 1087kB)

... including: UNITY – a universal TD platform for single tubes, the 100-tube ULTRA TD autosampler, the Air : ULTRA-UNITY or UNITY-Air Server (+dryer) Dry purge if no dryer used during sampling Splitless desorption...

Screw Cap Combo Valve Instruction Sheet (PDF 214kB)

.... 3- Replaceable ultra-low bleed septum inside cap. 4- Two holes in valve base are not suitable for use as septa. 5- Gas bags should always be flushed 3 or 4 times with Ultra-Pure Nitrogen, or Zero...

Dissecting Raptor LC Columns: A closer look at a new species (PDF 1725kB)

... Ultra Selective Liquid Chromatography (USLC) phases to offer chromatographers the best of both worlds Technologies, Inc. Pair 1.8 μm Raptor columns with an UltraShield filter instead of a guard cartridge...

Super Clean Gas Filter Kit Instruction Sheet (PDF 415kB)

... Baseplate - 1/8" Brass 22346 3-Position Baseplate - 1/8" Stainless Steel Ultra-High Capacity Filters 22028 Ultra-High Capacity Moisture Filter 22029 Ultra-High Capacity Oxygen Filter 22030 Ultra...

Raptor Biphenyl LC Columns Sales Sheet (PDF 3731kB)

... groups Ultr a Aqueous C18HydrophobicDipolarAcidicBasic0246810Ultra IBDHydrophobic DipolarAcidicBasic0246810Ultra BiphenylHydrophobicDipolarAcidicBasic0246810Ultra PFP Propyl...

Featured Application: Carbamate Pesticides on an Ultra Carbamate LC Column Analyze Carbamate Pesticides in a Fraction of the Time and Boost Productivity

... #main_article .article_title { color: #555; text-align: left; line-height: 22px; } #lead_image { float: right; padding: 0 0 20px 10px; } h1 { font-family: arial,helvetica,verdana,sans; font-size: 14px; font-weight: normal; line-height: 32px; margin-bottom: 10px; font-style: italic; } h2 { font-family: Verdana,Arial,Helvetica,sans-serif; font-size: 24px; font-weight: normal; line-height: 32px; margin: 0; padding: 0; } Ultra times of over 20 minutes. Using an Ultra Carbamate column instead of a C18 is a much better ... Carbamate pesticides can be analyzed much faster on an Ultra Carbamate LC column than on a C18 determinations in just 5–10 minutes using an Ultra Carbamate column and certified reference materials from Restek....

Inlet Liner Packing Tool Instruction Sheet (PDF 385kB)

... Models 27 mm Thermo Scientific TRACE 1300 Series 27 mm TRACE Ultra GC, FOCUS GC, 8000 Series 55 mm...

Accurately Quantify PAHs Down to 5 pg On-Column: GC/MS SIM Analysis with the New Rxi-5Sil MS Column (PDF 1009kB)

...% dimethyl polysiloxane) • Ultra-low bleed. • Exceptional inertness. • Reproducible performance, column .# SDVB Resin 1kg 24053 Ultra-Clean Resin Equivalent to XAD-2 Resin; Exclusively from Restek...

ETP Active Film Multiplier for Shimadzu QP5000 MS Instruction Sheet (PDF 239kB)

... the following equipment; a.ultra-sonic cleaner b.glass beaker (properly cleaned) c.Heptane (AR or HPLC grade immersed. b.place multiplier in ultra-sonic cleaner and clean for approximately ten (10) minutes. c...

ETP Active Film Multiplier for the HP/Agilent Technologies 5970 MSD Instruction Sheet (PDF 208kB)

.... The recommended technique for cleaning an ACTIVE FILM Multiplier requires the following equipment: a. ultra multiplier in beaker and fill with Heptane until multiplier is fully immersed. b. Place beaker in ultra...

Click-On Inline Super Clean Purifier Instruction Sheet (PDF 351kB)

... Click-On Inline Super Clean Ultra-High Capacity Traps 22466 Ultra-High Capacity Hydrocarbon Trap 22467 Ultra-High Capacity Moisture Trap 22468 Ultra-High Capacity Oxygen Trap Helium-Specific Click...

Gas Management Supplies for GC Labs (PDF 5122kB)

...-house compressed air into ultra-pure air with less than 0.1 ppm hydrocarbon levels. Varying models are available . Parker Balston FID gas stations provide both ultra-high purity grade hydrogen gas and zero air...

Thermal Desorption: A Practical Applications Guide: III. Defence and Forensic (PDF 661kB)

... including: UNITY – a universal TD platform for single tubes, the 100-tube ULTRA TD autosampler, the Air -line sorbent tube samples (ULTRA-UNITY) and continuous near-real time (NRT) detection (TT24-7). Systems can...

Fast, Simple LC-MS/MS Analysis of Creatine and Creatinine (PDF 568kB)

....# 9310A52); Dimensions: 50 mm x 2.1 mm ID; Particle Size: 2.7 μm; Pore Size: 90 Å; Guard Column: Ultra Pore Size: 90 Å Guard Column: UltraShield UHPLC precolumn filter 0.2 μm (cat.# 25810) Temp.: 40 °C...

Accurately Quantify 380 Pesticides Using LC-MS/MS and GC-MS/MS (PDF 6072kB)

... (cat.# 31972) on Ultra Aqueous C18 by LC-MS/MS. Figure 2: LC Multiresidue Pesticide Standard #2 (cat .# 31973) on Ultra Aqueous C18 by LC-MS/MS. LC_FF0517 LC_FF0518 Figure 1: LC Multiresidue Pesticide...

Thermal Desorption: A Practical Applications Guide: II. Residual Volatiles & Materials Emissions Testing (PDF 1445kB)

... – a universal TD platform for single tubes, the 100-tube ULTRA TD autosampler, the Air Server interface : ULTRA-UNITY Desorption: 10 mins at 60°C (direct TD) and 10 mins at 300°C (HS sample on Tenax tube) Trap...

ChromaBLOGraphy: HPLC columns for the European Pharmacopoeia methods

European Pharmacopoeia (EU) methods tend to be vague in their description for column requirements, which can make choosing the correct column a little tricky.   To simply things, I listed the Restek HPLC columns that best match the columns (phases) listed in the European Pharmacopoeia “Reagents” chapter. Hopefully this makes it a little easier to […]

Inlet Supplies for Thermo TRACE 1300/1310 GCs (PDF 2077kB)

...gilentShimadzuThermo TRACEPerkinElmerThermo TRACE UltraGerstel Viton O-Rings Inlet Supplies...

Raptor LC Columns: Stationary Phase: EtG/EtS (PDF 1487kB)

...G/EtS (cat.# 9325A12); Dimensions: 100 mm x 2.1 mm ID, Particle Size: 2.7 μm; Guard Column: UltraShield UHPLC .# 2.7 μm 2.1 mm 100 mm ea. 9325A12 UltraShield UHPLC PreColumn Filter • Cost...

Raptor SPP C18 Columns Sales Sheet (PDF 1888kB)

... Direct Connect Holder Raptor EXP Guard Column Cartridges UltraShield UHPLC PreColumn Filter—for 1.8 μm Raptor Columns Description Filter Porosity qty. cat.# UltraShield UHPLC PreColumn Filter 0.2 µm...

Raptor ARC-18 LC Columns Sales Sheet (PDF 1872kB)

... UltraShield UHPLC PreColumn Filter—for 1.8 μm Raptor Columns Description Filter Porosity qty. cat .# UltraShield UHPLC PreColumn Filter 0.2 μm frit ea. 25809 5-pk. 25810 10-pk. 25811 EXP Reusable...

Merlin Microseal User Manual (PDF 2119kB)

... their Microsealcompatible nut and a Microseal. For Thermo Trace and Trace Ultra GCs (not Instant Connect) Thermo Kit series (nut only) 81-10 Microseal adapter for Thermo Trace Ultra (available 2018) 85-10 For Shimadzu...

Restek Essentials: Featured Chromatography Products 2020.3 (PDF 4005kB)

... Your Lab Life Easier at www.restek.com 3 Restek Super Clean Ultra-High Capacity Hydrocarbon Filter Description qty. cat.# Ultra-High Capacity Hydrocarbon Filter ea. 22030 Restek Super Clean Ultra...

Successful Strategies for the Analysis of EtG and EtS in Urine (PDF 1274kB)

...: UltraShield UHPLC precolumn filter, 0.2 μm frit (cat.# 25809) Temp.: 35 °C Sample Diluent: 0 .# 9325A12) Dimensions: 100 mm x 2.1 mm ID Particle Size: 2.7 μm Pore Size: 90 Å Guard Column: Ultra...

Raptor Biphenyl LC Columns Brochure (PDF 6071kB)

... compounds • Fused-ring compounds with electron withdrawing groups Solute Retention Profile: Ultra Aqueous C18 Hydrophobic Dipolar Acidic Basic 0 2 4 6 8 10 Ultra IBD Hydrophobic Dipolar Acidic...

Rapid Analysis of 17 Bile Acids in Human Plasma by LC-MS/MS (PDF 767kB)

....#. 9304252) Guard column: UltraShield UHPLC precolumn filter (cat.# 25810) Mobile phase A: 5 mM ammonium Guard Column: UltraShield UHPLC precolumn filter 0.2 μm (cat.# 25810) Temp.: 60 °C Sample Diluent: 70...

Force LC Columns Sales Sheet (PDF 3547kB)

... Column: UltraShield UHPLC precolumn filter 0.2 μm (cat.# 25810); Temp.: 50 °C; Sample: Custom mix column with an UltraShield precolumn filter to prolong column lifetime—without significantly altering...

Direct Analysis of Morphine, M3G and M6G Metabolites, and Related Compounds in Urine by LC-MS/MS (PDF 778kB)

... equipped with an UltraShield UHPLC precolumn filter with a 0.2 μm frit. Instrument conditions are detailed .1 mm (cat.# 9629252) Guard column: UltraShield UHPLC precolumn filter, 0.2 μm frit (cat.# 25809...

Restek Essentials: Featured Chromatography Products 2020.2 (PDF 7897kB)

.... Reliably Filter Out Particulates and Extend UHPLC Column Lifetime with UltraShield UHPLC Pre with extensive sample preparations, pair 1.8 μm Raptor columns with an UltraShield filter instead. Description...

ChromaBLOGraphy: LC Preventative Maintenance Tips and Tricks – The UltraShield

We’re providing a creative trick for extending guard cartridges and column lifetimes.  This preventative maintenance consumable also acts as a handy troubleshooting tool for problematic back pressure readings.  Drum roll….The UltraShield! https://www.restek.com/pdfs/730-70-003.pdf Normally, the UltraShield is used as an affordable UHPLC pre-column filter and takes the place of a guard column.  These filters have minimal […]

Raptor FluoroPhenyl LC Columns Sales Sheet (PDF 1816kB)

... Cartridges UltraShield UHPLC PreColumn Filter—for 1.8 μm Raptor Columns Description Filter Porosity qty . cat.# UltraShield UHPLC PreColumn Filter 0.2 μm frit ea. 25809 5-pk. 25810 10-pk. 25811...

GC Analysis of Total Reduced Sulfurs at ppbv Levels Using an Rxi-1ms Column and Sulfur Chemiluminescence Detection

.... Our new 100% dimethylpolysiloxane column, the Rxi-1ms column, provides the ultra-low bleed required ... Ultra-low bleed and exceptional inertness assure complete separation of sulfur compounds (hydrogen...

Set Your Sights on Superior Performance — Restek PAL SPME Arrow (PDF 1933kB)

....# 27508); Injector adaptor cup (cat.# 27499) for Thermo TRACE Ultra Split/Splitless Injector kit 27495 ); Adaptor Kit (cat.# 23231) for Thermo TRACE Ultra Split/Splitless Injector kit 27359 Restek PAL SPME...

Set Your Sights on Superior Performance — Restek PAL SPME Arrow (PDF 1933kB)

....# 27508); Injector adaptor cup (cat.# 27499) for Thermo TRACE Ultra Split/Splitless Injector kit 27495 ); Adaptor Kit (cat.# 23231) for Thermo TRACE Ultra Split/Splitless Injector kit 27359 Restek PAL SPME...

Alicat Whisper Flow Calibrators Sales Sheet (PDF 901kB)

...; ultra-low pressure drop of 0.07 psid. • Convenient—no computer connection or software required and all...

D3606 Application Column Instruction Sheet (PDF 119kB)

... your D3606 column set last longer. 1. Ultra-high purity carrier gas (helium or nitrogen) is essential...

Parker Balston Hydrogen Generators (PDF 658kB)

... to high-pressure gas cylinders and can supply fuel-grade gas or ultra high-purity carrier gas. Hydrogen...

Ultra-Low Bleed Columns Improve Trace-Level Analysis

... bleed columns, which are available with the most commonly used stationary phases. Ultra-low bleed levels...

Restek LC Columns and Accessories (PDF 17409kB)

... Ultra LC Columns: Specialty phases and prep columns. Viva LC Columns: Large porosity columns pages: 14, 20, 26, 30, 37, 50. UltraShield UHPLC PreColumn Filters: For 1.8 μm Force & Raptor LC...

Preventing GC Septum Problems (PDF 319kB)

... use, and they are packaged in ultra-clean blister packs for a reliably clean product. Questions about...

Tech Tip: Column Conditioning Ensures Consistent EtG/EtS Results (PDF 402kB)

... Size: 2.7 μm Pore Size: 90 Å Guard Column: UltraShield UHPLC precolumn filter, 0.2 μm frit (cat...

Thermal Desorption: A Practical Applications Guide: IV. Food, Flavour, Fragrance & Odour Profiling (PDF 1952kB)

... – a universal TD platform for single tubes, the 100-tube ULTRA TD autosampler, the Air Server interface into empty glass tube or PTFE liner TD system: ULTRA-UNITY Desorption: 10 mins at 80°C Trap: Quartz wool...

Solutions for Gas Sampling (PDF 2133kB)

... 21394-PI Sample Cylinders, Ultra-High Pressure (Stainless Steel & Sulfinert-Treated) • 316L stainless configurations are available for both high-pressure and ultra-highpressure sample cylinders. An outage tube...

Reduce Helium Consumption by 68% Using Nitrogen Purge Gas for VOCs in Water (PDF 1218kB)

... HPN2-1100 (ultra-high purity) e.a. 21653 Maintenance Kits Model # qty. cat.# Annual Maintenance Kit -94, 76-96 kit 21655 Parker Balston Nitrogen Gas Generators • Produces ultra-pure nitrogen (up to 99...

ChromaBLOGraphy: Even the Honey Badger cares about food authenticity

It was recently reported in Food Safety News that the majority of “honey” sold in the United States is not technically honey, because it’s been ultra-filtered to remove all of the pollen. Maybe the honey badger doesn’t really care, but consumers should. Pollen is an essential constituent of authentic honey, and is not effectively removed [...]

Analysis of Synthetic Cannabinoids and Metabolites: Adding New Compounds to an Existing LC-MS/MS Method (PDF 870kB)

... Cannabinoids on an Ultra Biphenyl FPP Column Column Ultra Biphenyl (cat.# 9109552) Dimensions: 50 mm x 2.1 mm .restek.com Figure 6: Analysis of Synthetic Cannabinoid Metabolites on an Ultra Biphenyl FPP Column 1 2 3,4,5 6...

Rt-XLSulfur Packed Column: Specialized packed and micropacked columns for eXtra-Low Sulfur Analysis (PDF 977kB)

... of Sulfinert sample cylinders, sample loops, and transfer line tubing will provide ultra-high sensitivity...

ChromaBLOGraphy: I have an Ultra Quat column and I know how to use it….

Are those words you wish you could say? Most recently, we seem to encounter more customers asking for advice in preparing a mobile phase for their Diquat and Paraquat analysis (related to EPA Method 549). There are a couple of different scenarios for this analysis. Please note that the procedures described here are intended for [...]

Restek PAL SPME Arrow Instruction Sheet (PDF 249kB)

... injection kit. GC Conversion Kit Cat.# Thermo TRACE Ultra 27495 Thermo TRACE 1300/1310 27494 Agilent...

Raptor ARC-18 LC Columns Brochure (PDF 4942kB)

... more at www.restek.com/raptor Raptor EXP Guard Column Cartridges UltraShield UHPLC PreColumn Filter —for 1.8 μm Raptor Columns Description Filter Porosity qty. cat.# UltraShield UHPLC PreColumn Filter...

Raptor FluoroPhenyl LC Columns Brochure (PDF 3042kB)

... UltraShield UHPLC PreColumn Filter—for 1.8 μm Raptor Columns Description Filter Porosity qty. cat .# UltraShield UHPLC PreColumn Filter 0.2 μm frit ea. 25809 5-pk. 25810 10-pk. 25811 Description qty...

ChromaBLOGraphy: Which guard cartridges and holders go with which LC analytical columns?

As our family of LC products has grown, so have our choices for columns and accompanying guard cartridges. Here is a handy chart to show which guard holder and guard cartridges were intended for use with each type of analytical column. Please feel free to click the links to access each group of products on […]

Diagnosing and Preventing High Back Pressure Problems in LC Systems (PDF 5850kB)

... compounds. Using a guard column or an UltraShield pre-column filter, and changing it as part of your ; and Trident guards for Ultra, Viva, and Pinnacle DB columns. www.restek.com 5 The Mobile Phase The two main...

Restek LC Guard Column Selector: How to Find the Right Guard Fast

... with legacy HPLC columns (Ultra, Pinnacle II, Pinnacle DB, Allure, Viva with legacy HPLC columns (Ultra, Pinnacle II, Pinnacle DB, Allure, Viva...

Raptor C18 LC Columns Brochure (PDF 2375kB)

... You Selectivity Accelerated Raptor EXP Guard Column Cartridges EXP Direct Connect Holder Ultra Shield UHPLC PreColumn Filter—for 1.8 μm Raptor Columns Description Filter Porosity qty. cat.# Ultra...

ChromaBLOGraphy: Have there been any new applications developed for Diquat and Paraquat?

I am happy to answer “yes” to this question. Those of you who have been doing this analysis might have been using our Ultra Quat column that I talked about in an earlier blog post here, “I have an Ultra Quat column and I know how to use it…”   This updated method uses the […]

ChromaBLOGraphy: Can I use a 100% aqueous mobile phase with my LC column?

You might be asking this because you have read that not all columns are OK to use with highly aqueous content (>95%) in the mobile phase.  Or maybe the caption caught your eye because you have recently encountered some difficulty with using highly aqueous mobile phase. There is a phenomenon called “phase dewetting” that can […]

Restek PAL SPME Manual Injection Kit Instruction Sheet (PDF 926kB)

... for the following types of GCs: GC Conversion Kit Cat.# Thermo TRACE Ultra 27495 Thermo TRACE 1300/1310 27494...

SilcoCan Canisters Instruction Sheet (PDF 544kB)

... ultra-high purity air. Analyze an aliquot of the canister content by GC-MS, GC-FID, or GC...

TO-Can Canisters Instruction Sheet (PDF 541kB)

...Pa with humidified, certified ultra-high purity air. Analyze an aliquot of the canister content by GC-MS, GC...

Thermal Desorption Tubes: Versatile Air Sampling for a Wide Range of Applications (PDF 294kB)

... and glass (for thermally labile VOCs), they fit Markes ULTRA-UNITY, PerkinElmer, and Shimadzu thermal...

Rxi-5Sil MS: Exceptionally Inert Columns for GC/MS and Trace-Level Analyses (PDF 995kB)

.../MS and Trace-Level Analyses The Rxi-5Sil MS column is ultra-low bleed, highly inert, and unsurpassed...

Rxi GC Columns Sales Sheet (PDF 3173kB)

.... • Tested and guaranteed for ultra-low bleed; improved signal-to-noise ratio for better sensitivity UI, DB-1ms, DB-1msUI, Ultra-1, VF-1ms, ZB-1, ZB-1ms 15-Meter 30-Meter 60-Meter ID df temp. limits cat...

ChromaBLOGraphy: Contents inside your baseplate trap

We often get asked in tech service for a list of materials contained inside our baseplate traps from customers who are concerned about disposal regulations.  They have read our FAQ How do I dispose of used gas traps or filters?, but before contacting their waste disposal company, a list of the trap contents is requested.  […]

ChromaBLOGraphy: A Quote to Live By in the Lab – Frank Neugebauer – Thermo POPs Symposium

Great talk at the Thermo POPs Symposium in Bremen this week by Frank Neugebauer from eurofins (Hamburg), “Validation and Performance – Experiences with the HRMS Analysis of Human Samples”, especially on the aspects of quality control for chlorinated dioxins and furans, and PCBs analyses (as an aside, they are doing congener-specific PCB work and reporting […]

News: New Thermolite Plus Septa Now Available

Restek’s new Thermolite Plus septa offer advanced technology for optimal performance. The ultra-low bleed characteristic of these new septa minimizes the background signal, and the plasma coating prevents the septa from sticking in the injection port. Precision molding ensures a … Continue reading

ChromaBLOGraphy: Analyze PAHs by HPLC without Acetonitrile

Labs that are trying to cope with the acetonitrile shortage are trying to reduce solvent usage, or going to an alternate mobile phase. One way to reduce solvent usage is to minimize your column volume. This means going to a narrower column and possibly a shorter column as well. Ultra high pressure liquid chromatography (UHPLC) [...]

ChromaBLOGraphy: LC Separation of 29 Important PAHs, including the EFSA PAH8, Using Serially-Connected Ultra Aromax and Pinnacle II PAH Columns

Polycyclic aromatic hydrocarbons (PAHs) are a group of compounds that contain fused aromatic rings.  Some have been identified as potent carcinogens, mutagens, and teratogens.  Some of our exposure to PAHs occurs from food, which makes monitoring important.  The European Food Safety Authority published a document indicating that much of the carcinogenicity can be accounted for [...]

Rxi-5Sil MS Capillary GC Columns (PDF 3623kB)

...New! Rxi-5Sil MS Capillary GC Columns Fast, Accurate Semivolatiles Analysis • Ultra-low bleed...

Force LC Columns

Force LC columns are long-lasting and reproducible, even under the stress of UHPLC. Premium quality is backed by the strength of our 100% Pure Satisf...

A Primer on Gas Flow (PDF 1253kB)

... realm will recognize this as the reason why ammeters are designed to have ultra low impedance...

Versatile GHB Method For Headspace or Liquid Injection (PDF 1100kB)

...DB-5, HP-5, HP-5MS, Ultra-2, SPB-5, Equity-5, MDN-5,CP-Sil 8 CB The DB-5MS is a silarylenebased polymer...

Rtx-Wax: A Rugged and Reliable Choice for the Analysis of Glycols in Water (PDF 829kB)

... 600 water injections. • Ultra-low bleed allows for accurate detection down to 0.5 ng of glycols...

ChromaBLOGraphy: Comprehensive Pesticide Screening Using QuEChERS, LC-MS/MS, and GCxGC-TOFMS at PittCon 2010

A recent collaboration with Applied Biosystems used a sensitive LC-MS/MS (4000 QTRAP) with a Restek Ultra Aqueous C18 column as the instrumental determination step for pesticides in QuEChERS extracts of red bell pepper, lemon, spinach, hazelnuts, raisins, and cucumber. Those same QuEChERS extracts were analyzed by a LECO Pegasus 4D GCxGC-TOFMS with Rxi-5Sil MS and [...]

Restek Essentials: Featured Chromatography Products 2019.1 (PDF 4834kB)

... Samples in Less Time and Run Analyses Faster Don’t forget your EXP guards and UltraShield filters! www.2 % solid particulates. Thomson SINGLE StEP Nano Filter Vials Ultra-low dead volume allows you to filter...

Stabilwax-MS Columns—Thermally Stable, High Polarity GC Columns for Flavor, Food, Fragrance, Industrial Chemical, and Solvent Analyses (PDF 2473kB)

...-WAXms Lower detection limits Ultra-clean, Restek-manufactured phase and bonding chemistries Extraordinary puncturability. • Preconditioned and ready to use. • Packaged in ultra-clean blister packs**. • A Restek...

Improve EPH Testing Accuracy and Efficiency with Resprep EPH Fractionation SPE Cartridges (PDF 3207kB)

... to 330/350 °C ea. 13424 similar phases HP-5ms SemiVolatiles, HP-5ms, HP-5msUI, DB-5, Ultra-2, CP-Sil 8 column on the market. • Tested and guaranteed for ultra-low bleed; improved signal-to-noise ratio...

ChromaBLOGraphy: Having Trouble With the ACN Shortage? Try MeOH for the Separation of Aldehydes and Ketones by HPLC

Many laboratories are struggling to find alternatives for HPLC separations that use acetonitrile for the organic. While there are other options, it can become difficult to find the right conditions, and method revalidation might also be required. The automotive industry commonly performs the analysis of DNPH-aldehydes and ketones using a custom-designed HPLC Column (Restek Allure-AK), [...]

ChromaBLOGraphy: Which LC column should I use for Method 8330B explosives analysis?

Over the years, Restek has run applications on a long list of columns for this analysis. It does require a primary and secondary column for analysis, since there is not one column that perfectly separates all compounds on the list simultaneously. Keep in mind that EPA Method 8330B allows for alternate columns versus the ones […]

ChromaBLOGraphy: Update on Guard Cartridges for Trident Holders

        You may have seen my last blog post about guard holders and cartridges that we have available for our various LC product lines, “Which guard cartridges and holders go with which LC analytical columns?” Along those lines of discussion, the following note is available to also show what specific products are […]

ChromaBLOGraphy: Pain panel causing you pain?

Particularly if you are using an AB Sciex’s iMethod™ for pain management drugs in urine, you might be noticing a shorter lifetime on your Ultra Biphenyl columns. These are challenges that we are facing and currently looking for the best solution. Since those methods in question do not contain cleanup methods such as SPE, the [...]

Low-Level GC/MS for Semivolatiles in Drinking Water Excellent Responses at 10ng On Column, Using an Rxi-5ms Column

... Inert, ultra-low bleed column improves low level analyses. Excellent peak with exceptional inertness and ultra-low bleed, ensuring resolution and symmetric peaks for these difficult...

Rapid Analysis of Steroid Hormones by GC/MS Using the New Rxi-1ms Column

... Resolve 6 common steroid hormones in less than 25 minutes. Ultra-low bleed the ultra-low bleed and exceptional inertness needed for analyzing urinary steroid hormones...

Rxi Column Cross-Reference Table Lower Detection Limits with Ground-Breaking Column Technology

...) HP-1ms, HP-1ms UI,DB-1ms, DB-1ms UI, VF-1ms, Ultra-1 bleed) HP-5msSV, HP-5ms, HP-5ms UI, DB-5, Ultra...

ChromaBLOGraphy: Choosing a guard cartridge for LC

So you have a guard cartridge holder of some sort, and you don’t have the guard cartridge to put inside. If you happen to have missed that last blog post about the holder, click on the following link. Choosing a guard cartridge holder for LC Let’s determine what type of guard cartridge you need. A […]

ChromaBLOGraphy: A C18 is a C18, right?

    Sorry, that actually is not true. Although many methods only list the USP code L1 for all C18 HPLC columns, there are many different varieties of C18 columns available from Restek. Here are some of the ways they may differ:   Differences in Silica Depending on the silica particle that the C18 phase […]

ChromaBLOGraphy: A Fast Autosampler Injection Can Promote DDT Degradation

I’m continuing my series on Endrin and DDT degradation as part of EPA Method 8081 organochlorine pesticides analysis where I saw in a GC-ECD experiment that the ultra fast injection from the Agilent 7683 autosampler can enhance DDT degradation when using a single taper liner with NO WOOL.  That’s because the liquid sample is thrown [...]

Analytical Method for Polycyclic Aromatic Hydrocarbons (PAHs) in Yerba Mate Tea Using Modified QuEChERS, Solid Phase Extraction and GC-TOFMS and GC-MS/MS (PDF 634kB)

...); coronene, dibenz[a,c]anthracene, perylene, and triphenylene (Sigma-Aldrich); benzo[e]pyrene (Ultra and thyroid tissues by QuEChERS extraction and ultra-performance liquid chromatography tandem mass...

GC Inlet Maintenance: Restek’s Quick-Reference Guide (PDF 8496kB)

... Scientific GCs: Focus GC, TRACE GC Ultra & TRACE GC x GC • Easily loosens the liner cap from the injector • Usable to 350 °C inlet temperature.* • Ultra-low bleed minimizes background signal. • New plasma...

Eliminate the Impact of Instrument-Related PFAS Interferences by Using a Delay Column (PDF 761kB)

... Columns 50 mm, 2.1 mm ID 9304252 similar phases Accucore C18, Accucore RP-MS, ACE UltraCore Super C18...

Critical Purity 527 Series Automatic Switchover System Installation and Operation Instructions (PDF 214kB)

...The 527 Series Automatic Switchover System For use with Ultra High Purity Gas es INSTALLATION...

ChromaBLOGraphy: Easy Peasy: Optimized LC-QTRAP Method for Pesticide Residues

Despite what is sometimes advertised, setting up optimized methods for multiresidue pesticide analysis is typically not “easy peasy” and can be quite time consuming. Luckily, some colleagues are willing to share their method with us. Thank you Kelli, James, and Jon!* The downloadable spreadsheet contains retention times, transitions, ionization and collision parameters for our LC […]

How do intrinsically base-deactivated phases work?

...  Ultra IBD offers more flexibility in method development giving excellent peak shape for highly basic...

Parker PEM Hydrogen Generators Is your lab wasting money on bottled gas?

... Economical, continuous source of ultra-pure hydrogen (99.9995%). Safe will continue to rise, domestically and internationally. Chromatographers must look for cost-effective, ultra...

Gas Management Supplies for GC Labs

...air gas generators from Parker Balston can turn in-house compressed air into ultra-pure air with less than combine a hydrogen generator and zero air generator into one unit. Parker Balston FID gas stations provide bot...

ChromaBLOGraphy: Old Derivatized Melamine Standards

I was doing some GC retention time marking while starting a melamine project yesterday and obtained an old BSTFA-derivatized standard of cyanuric acid, ammelide, ammeline, and melamine at 5 ng/µL. This standard had been stored at 4°C for about 3 months. I injected 1µL of the standard into the GC and did not see the [...]

Guide to Whole Air Canister Sampling (PDF 1472kB)

... The two gases recommended for cleaning canisters are humidified ultra-high purity air and ultra . To certify a canister clean, pressurize the canister to 14.7 psig with humidified ultra-high purity air...

Restek Essentials: Featured Chromatography Products 2018.1 (PDF 5439kB)

... • Usable to 350 °C inlet temperature. • Ultra-low bleed minimizes background signal. • Plasma coating...

Detailed Hydrocarbon Analaysis (DHA) Featuring Rtx-DHA Columns (PDF 3950kB)

... • Usable to 350 °C inlet temperature.* • Ultra-low bleed minimizes background signal. • Septa have...

PFAS LC Column Anatomy: Which Phase, Dimensions, and Particle Type Are Best? (PDF 1483kB)

...-porous particles (FPP) without the associated ultra-high pressure, which allows labs using either UHPLC or HPLC...

Residual Pesticides Analysis of Botanical Ingredients Using Gas Chromatography Triple Quadrupole Mass Spectrometry (PDF 2566kB)

...UI, DB- 5, Ultra-2, CP-Sil 8 CB, ZB-5, ZB-5msi CH3 CH3 Si 95% Si O 5% O • General and guaranteed for ultra-low bleed; improved signal-to-noise ratio for better sensitivity and mass spectral...

ChromaBLOGraphy: VOC Analysis: O.I. Analytical Nitrogen Purge Gas Application Note with Restek Rtx-624 GC Column

The thought of N2 gas for purge & trap / GC-MS of volatile organic compounds has been around for years. N2 GC carrier gas decreases MS sensitivity and has unfavorable performance for analysis time versus helium. O.I. Analytical found a novel approach to this problem; they use N2 for purge gas and helium as GC [...]

ChromaBLOGraphy: Improve Retention and Peak Shape for Early-Eluting Pesticides in LC-MS/MS

How important is the HPLC column in a comprehensive LC-MS/MS screening method? LC-MS/MS is quickly gaining acceptance for residue testing, and can simultaneously monitor hundreds of pesticides, including those difficult to detect by GC. With such a powerful detector, hasn’t the column become simply a sample inlet device? While the MS/MS detector allows for specific, [...]

News: New UHPLC Guard Cartridges Deliver Ultimate Protection for Restek’s 1.8 μm Raptor Columns

Raptor 1.8 μm LC columns unleashed superior Raptor performance on UHPLC analyses, and now Restek has released EXP UHPLC guard column cartridges made specifically for Raptor 1.8 μm columns. These new guards provide extreme protection from particulates and matrix contamination, … Continue reading

News: Liquid Chromatography: Pharmaceutical Applications (Chapter in Reference Module in Chemistry, Molecular Sciences and Chemical Engineering)

Author(s): D.M. Diehl1, David S. Bell2, Barbara Bojko3 1. Waters Corporation, 2. Restek Corporation, 3. Nicolaus Copernicus University Published By: Elsevier Year of Publication: 2018 Link: https://www.sciencedirect.com/science/article/pii/B9780124095472144920 Abstract: Liquid chromatography (LC) has been applied in the pharmaceutical industry almost from the … Continue reading

ChromaBLOGraphy: Don’t forget the end fittings when you purchase an inline gas regulator

Recently I talked to a couple of customers who ordered an inline gas regulator, but didn’t order any end fittings, so when the regulator arrived, they weren’t able to connect it to their gas line.  As a result, I decided to write this post to remind our customers that they may need to purchase end […]

The Restek Biphenyl: Leading Resolution in LC since 2005

With ten years of unrivaled performance, Restek's time-tested Biphenyl has been proven to be the ideal LC column for clinical diagnostic, pain, pharm...

ChromaBLOGraphy: Which LC column should I use for my method?

We understand that with so many products on the market, choosing a column to get started can be difficult. Of course, column selection depends on what type of method you are following and what kind of LC system you have in your lab. Let’s begin by looking at our choices for the more traditional, fully […]

Raptor SPP Core-Shell LC Columns

Raptor SPP LC columns offer higher efficiency for drastically faster analysis times, better selectivity for substantially improved resolution, increa...

TO-Clean Manual (PDF 1309kB)

... Quality Maximum Set Pressure Nitrogen or Zero Air Ultra High Purity 35 psig max Valve actuation requires...

Restek Essentials (PDF 1623kB)

... rapidamente 2 Non dimenticare le precolonne EXP e i filtri UltraShield! www.restek.com/it/LCguard Colonne...

Frequently Asked Questions: HPLC and UHPLC

..., namely the Ultra C8 and Ultra Aromax columns, are also an option. Keep in mind that a variety of column phases may...

QuEChERS Made Even Easier: Comprehensive Solutions Simplify Sample Prep and Analysis (PDF 1419kB)

.... • Ready-to-use tubes, no glassware required. • Pre-weighed, ultra-pure extraction salts. • Ideal...

Restek Essentials (PDF 6898kB)

.... Colonnes de type « -5 » Colonne Rxi-5Sil MS : spécialement conçe pour un « bleeding » ultra-faible en GC...

Growing Analytical Solutions for Cannabis Testing: Innovative Products and Expertise for Fast, Accurate, Reliable Results (PDF 8494kB)

...-to-use tubes, no glassware required. • Pre-weighed, ultra-pure extraction salts. PSA—primary and secondary inert column on the market. • Tested and guaranteed for ultra-low bleed; improved signal-to-noise ratio...

ChromaBLOGraphy: GC-MS with Hydrogen Carrier Gas

At the LECO Australia Separation Science Users Group Meeting last Friday in Sydney, my colleague from South Africa, Peter Gorst-Allman, made a presentation on using hydrogen carrier gas for GC-TOFMS and GCxGC-TOFMS.  His preliminary results were quite encouraging, as he noted no obvious deterioration of mass spectra quality for a wide variety of compounds, including [...]

ChromaBLOGraphy: Choosing a guard cartridge holder for LC

If you need help choosing one of the Trident guard cartridge holders, check out our information found in the HPLC and UHPLC FAQs section of our website. The FAQs contain a lot of good information and are often overlooked. For most of our columns we prefer the Trident Direct Guard holder system, because of its […]

ChromaBLOGraphy: Simple tips to help your D3606 column set last longer

. Years ago, Restek developed a packed column set for ASTM D3606 “Standard Test Method for Determination of Benzene and Toluene in Finished Motor and Aviation Gasoline by Gas Chromatography”.  More specifically, this two column set (catalog number 83606-___) replaces the three column set listed in ASTM D3606-10, “Appendix X1. Resolving Benzene from Ethanol, Section […]

ChromaBLOGraphy: What is the difference between Restek nitrogen generators which use electricity and those which do not?

You may have reviewed our product webpage for Parker Balston® Nitrogen Gas Generators for LC-MS and noticed that is states: Models N2-04, N2-14, N2-22, and N2-35 require no electricity.  So why don’t these models require electricity but models N2-14A, N2-22A, and N2-35A do? The simple answer is: those which use electricity have an oxygen sensor […]

News: Accurately Detect and Quantify 204 Pesticides of Global Food Safety Concern by LC-MS/MS

Stop spending your time and money developing LC-MS/MS multi-residue pesticide methods and mixing reference standards when you could be running samples! Restek’s trusted food safety experts have already done the work for you—with guaranteed accuracy and at a lower cost. … Continue reading

News: Improve Your Environmental Chromatography with Shimadzu & Restek

Restek Business Development Manager Joe Konschnik will be presenting at an upcoming Shimadzu environmental symposium: Environmental Methods… Past, Present & Future Where it all started, enhancements for today, and method updates toward tomorrow Taking place on November 6, 2015, at … Continue reading

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Ultrashort- Through Long-Chain and Alternative PFAS on Raptor Polar X

LC_EV0569

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Methane Purity on Rtx-1

GC_PC00208

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Sugars on Ultra Amino

LC_0154

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Carbamates on Ultra Carbamate

LC_FF0473

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Pesticides on Ultra Aqueous C18

LC_FF0490

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Pesticides on Ultra Aqueous C18

LC_FF0490A

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Pesticides on Ultra Aqueous C18

LC_FF0490B

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