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MXT-Alumina BOND/MAPD Columns (Siltek-treated stainless steel PLOT)

.../MAPD column for improved analysis of trace concentrations of polar hydrocarbons like acetylene, methyl acetylene, and propadiene in hydrocarbon streams containing higher levels of C1-C5 hydrocarbons. Our new ... of acetylene, methyl acetylene, and propadiene. Stable response factors make this column ideal...

Rt-Alumina BOND/KCl Columns (fused silica PLOT)

KCl deactivation

... retention indices for propadiene and methyl acetylene. The resolution of trans-2-butene and 1-butene is also ... the need for frequent regeneration. Acetylene elutes before n -butane. Methyl acetylene (impurity in 1,3-butadiene) elutes before 1,3-butadiene...

Rt-Alumina BOND/MAPD Columns (fused silica PLOT)

... retention indices for propadiene and methyl acetylene. The resolution of trans-2-butene and 1-butene is also analysis of trace concentrations of polar hydrocarbons like acetylene, methyl acetylene, and propadiene ... of acetylene, methyl acetylene, and propadiene. Stable response factors make this column ideal...

Rt-Alumina BOND/Na2SO4 Columns (fused silica PLOT)

Na2SO4 deactivation

..., while selectivity is measured using retention indices for propadiene and methyl acetylene ... Acetylene and propadiene elute after butanes. Best separation for butene isomers (impurities in butene streams). Methyl acetylene elutes after 1,3-butadiene...

Rt-QS-BOND Columns (fused silica PLOT)

porous divinylbenzene homopolymer

.... Separates ethane, ethylene, and acetylene to baseline. Stable to 250 °C. ...

Refinery Gas Standard #2 (27 components)

....000 %Ethylene, 2.000 %Acetylene, 1.000 %Propane, 6.000 %Propylene, 3.000 %Propadiene, 1...

Refinery Gas Standard #5 (26 components)

....000 %Ethylene, 2.000 %Acetylene, 1.000 %Propane, 6.000 %Propylene, 3.000 %Propadiene, 1...

Ozone Precursor Mixture/PAMS (57 components)

...Acetylene Benzenen-Butane1-Butene...

Rt-Alumina BOND/CFC Columns (fused silica PLOT)

... retention indices for propadiene and methyl acetylene. The resolution of trans-2-butene and 1-butene is also...

Alicat M-Series Flow Calibrators

..., silicone RTV (rubber), glass-reinforced nylon, aluminumProgrammed Gases: Acetylene, air, argon, butane...

Ozone Precursor/PAMS Mix (57 components at EPA concentrations: ppbC)

...Acetylene, 40 ppbC Benzene, 30 ppbCn-Butane, 40...

Carbon monoxide, carbon dioxide, methane, ethane, ethylene, and acetylene in nitrogen (1% each)

...Airgas Std, 1% ea of Carbon Monoxide, Carbon Dioxide, Methane, Ethane, Ethylene and Acetylene in N2...

Improve Trace Analysis of Acetylene, Propadiene, and Methyl Acetylene Impurities with Higher Capacity Alumina MAPD Columns (PDF 351kB)

... Analysis of Acetylene, Propadiene, and Methyl Acetylene Impurities with Higher Capacity Alumina MAPD of impurities, such as acetylene, propadiene, or methyl acetylene, must be detected in order to prevent damage...

Analyze Trace Polar Hydrocarbons More Accurately and Reliably With New Alumina BOND/MAPD PLOT Columns! (PDF 2703kB)

... analysis of polar hydrocarbons like propadiene, acetylene, and methyl acetylene. Successful analysis as MAPD columns (for methyl acetylene and propadiene), have been developed specifically...

Analysis of Trace Hydrocarbon Impurities in 1,3-Butadiene Using Optimized Rt-Alumina BOND/MAPD PLOT Columns (PDF 408kB)

... both common light polar contaminants, including methyl acetylene and propadiene, as well as 4 purification, it is also important that 1,3-butadiene be free of propadiene and methyl acetylene, which can...

Improve Trace Analysis of Acetylene, Propadiene, and Methyl Acetylene Impurities With Higher Sample Capacity Alumina MAPD Columns

... trace levels of impurities, such as acetylene, propadiene, or methyl acetylene, must be detected impurities, such as acetylene, propadiene, and methyl acetylene in petroleum gases, the sample handling ... for analyzing acetylene, propadiene, and methyl acetylene in petroleum gases. Greater capacity improves data ... acetylene, "methyl acetylene", "MAPD alumina", "column capacity", "high capacity", alumina...

Analysis of Impurities in Ethylene by ASTM D6159-97 (PDF 1789kB)

..., there are coelutions between three different peak pairs. Acetylene and isobutane (peaks 7 and 8) elute at the same , and there is a complete coelution between methyl acetylene and n-pentane (peaks 16 and 17). Figure 2 Analyzing ethylene...

How to Understand and Deal with Overloading in GC (PDF 241kB)

..., methyl-acetylene and 1,3 butadiene, tail significantly. The overloaded hydrocarbons also elute earlier ). Dilutingofthesamplepriortoinjection. Figure 5: Impact of temperature on peak shape of 1,3-butadiene and methyl acetylene. Column: 30...

ShinCarbon ST Micropacked GC Columns: Above-Ambient Analyses of Permanent Gases and Light Hydrocarbons (PDF 342kB)

... plus acetylene, ethylene, and ethane, completed in less than 20 minutes. Natural gas components (70 @ 200 °C Peaks 1. Oxygen 2. Nitrogen 3. Carbon monoxide 4. Methane 5. Carbon dioxide 6. Acetylene...

Restek's PLOT Column Family (PDF 3255kB)

... for propadiene and methyl acetylene. The resolution of trans-2-butene and 1-butene is also verified and reliability and stability. • Acetylene and propadiene elute after butanes. • Best separation for butene...

New PLOT Column Technology Stabilises Flow and Improves Analysis of Light Hydrocarbons, Solvents and Permanent Gases (PDF 1947kB)

... separation of propadiene and acetylene from n-butane is also observed and can be further increased a relatively nonpolar surface. The polar hydrocarbons acetylene, methyl acetylene, and propadiene are strongly...

News: Improve Trace Analysis of Acetylene, Propadiene, and Methyl Acetylene Impurities With Higher Capacity Alumina MAPD Columns

Author(s): Rick Morehead, Jan Pijpelink, Jaap de Zeeuw Published By: Petro Industry News Year of Publication: 2011 Link: http://www.restek.com/Technical-Resources/Technical-Library/Petroleum-Petrochemical/petro_PCAN1537-UNV Abstract: When analysing trace impurities in petroleum gases, such as propylene, ethylene, or 1,3-butadiene, column capacity (loadability) is an important factor in obtaining accurate … Continue reading

17 Minute D2712 Analysis of Impurities in Propylene Using PLOT Columns (PDF 1608kB)

.... n-butane 9. propadiene 10. acetylene 11. trans-2-butene 12. 1-butene 13. isobutylene 14. cis-2 -butene 15. isopentane 16. n-pentane 17. 1,3-butadiene 18. methyl acetylene Excellent peak shape...

Analysis of Trace Hydrocarbon Impurities in 1,3-Butadiene Using Optimized Rt-Alumina BOND/MAPD PLOT Columns

... used to separate both common light polar contaminants, including methyl acetylene and propadiene be free of propadiene and methyl acetylene, which can interfere with catalytic polymerization. Alumina ... of both light polar impurities (methyl acetylene, propadiene) and 4-vinylcyclohexene, a heavier...

Analysis of Trace Hydrocarbon Impurities in 1,3-Butadiene Using Optimized Rt-Alumina BOND/MAPD PLOT Columns

... used to separate both common light polar contaminants, including methyl acetylene and propadiene be free of propadiene and methyl acetylene, which can interfere with catalytic polymerization. Alumina ... of both light polar impurities (methyl acetylene, propadiene) and 4-vinylcyclohexene, a heavier...

ChromaBLOGraphy: Speed up Separations and Maximize acetylene, propadiene and methylacetylene Response using High flow and Short alumina MAPD columns

Last week I had the chance to do some labwork at Restek on light hydrocarbon analysis looking at fast analysis of trace polar hydrocarbons (acetylene, propadiene). For this application, a new column was developed : AluminaBOND / MAPD.  See also:  http://blog.restek.com/?p=2670   I always was amazed by the selectivity of the alumina adsorbent for hydrocarbon [...]

ChromaBLOGraphy: New Alumina PLOT provides Highest Acetylene/Propadiene Response and extended Maximum Temperature

During last ISCC symposium in San Diego, several posters were presented on alumina PLOT technology and application. One poster was about a new alumina columns with improved characteristics. The other poster was about separation behavior of alumina. Here we zoom into the new Alumina technology. In light hydrocarbon analysis, the separation and detection of traces [...]

Solutions for Your Petro Analyses (PDF 7050kB)

..., ethylene, and acetylene to baseline. • Designed for the best possible separation between all C2 isomers Peaks 1. Methane 2. Ethane 3. Ethylene 4. Acetylene 5. Propane 6. Cyclopropane 7. Propylene 8...

Extending the Power of Stabilized PLOT Column Technology to Process GC Analyzers (PDF 750kB)

.... n-Butane 8. Propadiene 9. Acetylene 10. trans-2-Butene 11. 1-Butene 12. Isobutylene 13. cis-2...

News: Analysis of Trace Hydrocarbon Impurities in 1,3-Butadiene Using Optimized Rt®-Alumina BOND/MAPD PLOT Columns

Author(s): Rick Morehead, Jan Pijpelink, Jaap de Zeeuw, Tom Vezza Published By: Restek Corporation Year of Publication: 2011 Link: http://www.restek.com/Technical-Resources/Technical-Library/Petroleum-Petrochemical/petro_PCAN1434 Abstract: Impurity analysis of 1,3-butadiene on an Rt®-Alumina BOND/MAPD column results in good separation of both light polar impurities (methyl acetylene, … Continue reading

ChromaBLOGraphy: Methyl alcohol in your air preconcentrator could drive you to the ethyl alcohol…

During some recent Photochemical Assessment Monitoring Station (PAMS) analyses I had to start scanning down to 26 (you have to if you want to analyze ethylene, acetylene, ethane, and propane). So when I did this methyl alcohol popped up in ALL my analyses (i.e., blanks, standards, etc… you name it). See the figure below. My […]

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

... and ethyne (acetylene) to trimethyl benzene Concentrations: Sub to low ppb levels Markes International Ltd...

Restek's PLOT Column Family PCSS1163G-UNV

Restek's porous layer open tubular (PLOT) columns feature an innovative bonding process that minimizes particle release, more consistent flow for stable retention times, and outstanding peak symmetry to improve impurity analysis. Restek PLOT columns are the benchmark for performance.

ChromaBLOGraphy: [15] What do Chromatograms tell us? First eluting peak is much too broad

Chromatograms are like fingerprints.  If you can “read” chromatograms well, you often can find a plausible cause. In this series, we will show a series of GC-chromatograms that are obtained from users and discuss some potential causes for the phenomena. Then we can move into some solutions for improvement.   An analysis was done where [...]

ChromaBLOGraphy: Cassini-Huygens: 20-Year Mission Accomplished

On October 15th, 1997, the $3 billion spacecraft went on a seven year, two-billion-mile journey to study the planet Saturn along with its moons and rings. After arriving at the Saturnian system, Cassini deployed the 700-pound Huygens probe to its largest moon, Titan. At 100 miles above the surface the aerosol collector pyrolizer (ACP) and […]

ChromaBLOGraphy: [24] What do Chromatograms tell us? Base line is Rising with a Near Constant Slope..

Chromatograms are like fingerprints.  If you can “read” chromatograms well, you often can find a plausible cause. In this series, we will show a series of GC-chromatograms that are obtained from users and discuss some potential causes for the phenomena. Then we can move into some solutions for improvement.   In chromatography, we always like […]

ChromaBLOGraphy: Limitations of Alumina: What you should NOT inject on alumina / Al2O3 columns

Alumina (Al2O3) capillary PLOT columns have been available for about 35 years. They are best suited for separation of C1-C10 hydrocarbons and especially the C1-C5 range. The alumina has unique selectivity making it possible to separate all the unsaturated hydrocarbons at temperatures above ambient, see figure 1. While its an excellent choice for unsaturated hydrocarbons, special attention is […]

ChromaBLOGraphy: Molecular Sieve Packed Columns and Fixed (Permanent) Gas Analysis

For some reason, I find molecular sieve packed columns interesting.  Maybe it’s because they have a niche as the go-to columns for fixed (permanent) gas analysis.  Maybe it’s because they are old school technology that a new generation of analysts are always asking questions about.  Maybe it’s because using them successfully is a function of […]

ChromaBLOGraphy: TO-15 + PAMS + TO-11A = China’s HJ759 + PAMS + HJ683

It is very fitting that I write this blog while I am in Shanghai, China. The impetus for this blog, and the blogs to follow, is that the Chinese Ministry of Ecology and Environment (formerly the Ministry of Environmental Protection) published their “VOCs Monitoring Scheme of Environmental Air Quality.” In short, this standard outlines the sampling […]

ChromaBLOGraphy: TO-15 + PAMS + TO-11A = China’s HJ759 + PAMS + HJ683 part 2: Deans switching and TO-15/PAMS

In a previous blog (TO-15 + PAMS + TO-11A = China’s HJ759 + PAMS + HJ683) Jason Herrington mentioned a dual column MS/FID setup for China’s combined HJ759 + PAMS + HJ683 method. While this could be done with a simple Y splitter (such as https://www.restek.com/catalog/view/1983), a more elegant solution is to use a microfluidic […]

For advanced chromatogram searching, please check out our Chromatogram Library Search Tool.

Permanent Gases and Nitrous Oxide on ShinCarbon ST Micropacked Column

GC_PC1343

Column: ShinCarbon ST micropacked column, 100/120 mesh, 2 m, 1.00 mm ID (cat.# 19808)
Injector: Split
Detector: TCD

Permanent Gases and Nitrous Oxide on Rt-Q-BOND

GC_PC1345

Column: Rt-Q-BOND, 30 m, 0.53 mm ID, 20 µm (cat.# 19742)
Injector: Split
Detector: TCD

Refinery Gas on Rt-Q-BOND

GC_PC1342

Column: Rt-Q-BOND, 30 m, 0.53 mm ID, 20 µm (cat.# 19742)
Injector: Split
Detector: FID

Refinery Gas on Rt-Alumina BOND/Na2SO4 (ASTM D2163-14)

GC_PC1309

Column: Rt-Alumina BOND/Na2SO4, 50 m, 0.53 mm ID, 10 µm (cat.# 19756)
Injector: Split
Detector: FID

PAMS 57 Component Mix on Rtx-1 (105 m)

GC_AR1160

Column: Rtx-1, 105 m, 0.25 mm ID, 1.00 µm (cat.# 10159), with MXT-Union connector kit (cat.# 21386)
Injector: Direct
Detector: MS-Scan

Acetylene and Propadiene Capacity on Rt-Alumina BOND/MAPD

GC_PC1216

Column: Rt-Alumina BOND/MAPD, 50 m, 0.53 mm ID, 10 µm (cat.# 19778)
Injector: Split
Detector: FID

C1-C5 Hydrocarbons on Rt-Alumina BOND/MAPD

GC_PC1213

Column: Rt-Alumina BOND/MAPD, 50 m, 0.53 mm ID, 10 µm (cat.# 19778)
Injector: Split
Detector: FID

Refinery Gas Hydrocarbons on Rt-Alumina BOND/Na2SO4

GC_PC01139

Column: Rt-Alumina BOND/Na2SO4, 30 m, 0.53 mm ID, 10 µm (cat.# 19755)
Injector: Split
Detector: FID

Refinery Gas on Rt-Alumina BOND/KCl

GC_PC01088

Column: Rt-Alumina BOND/KCl, 50 m, 0.53 mm ID, 10 µm (cat.# 19760)
Injector: Split
Detector: FID

Refinery Gas

GC_PC01143

Column: Rt-QS-BOND, 30 m, 0.53 mm ID, 20 µm (cat.# 19738)
Injector: Split
Detector: TCD

Propylene and C1-C5 Hydrocarbons on Rt-Alumina BOND/Na2SO4

GC_PC01142

Column: Rt-Alumina BOND/Na2SO4, 50 m, 0.53 mm ID, 10 µm (cat.# 19756)
Injector: Split
Detector: FID

Refinery Gas C1 to C5 Using n-Octane on Res-Sil C Packing

GC_PC00372

Column: SilcoSmooth Tubing, 80/100 mesh on Res-Sil C, 20ft., 1/8in. OD, 2 mm ID (cat.# 80436-800)
Injector: Not On-Column - Packed
Detector: FID

Refinery Gas Using OPN on Res-Sil C Packing

GC_PC00373

Column: SilcoSmooth tubing, 80/100 mesh on Res-Sil C packing, 12ft., 1/8in. OD, 2 mm ID (cat.# 80437-800)
Injector: On-Column - Packed
Detector: FID

Refinery Gas Calibration Standard on Refinery Gas Packed Column Set

GC_PC00374

Column: Silcosteel® tubing (cat.# 88000-875)
Injector: On-Column - Packed
Detector: FID

Refinery Gas on MXT-Alumina BOND/Na2SO4

GC_PC1183

Column: MXT-Alumina BOND/Na2SO4, 30 m, 0.53 mm ID, 10 µm (cat.# 79714)
Injector: Split
Detector: FID

Refinery Gas Mix on Rt-QS-BOND

GC_PC01054

Column: Rt-QS-BOND, 30 m, 0.53 mm ID, 20 µm (cat.# 19738)
Injector: Split
Detector: FID

Ozone Precursors on Rtx-1

GC_EV00019

Column: Rtx-1, 60 m, 0.32 mm ID, 3.00 µm (cat.# 10187)
Injector: Sample Valve
Detector: FID

Q, QS, S, and U PLOT Column Comparison

GC_PC01074

Column: Q, QS, S, and U PLOT column comparison
Injector: Split
Detector: FID

Ethylene and C1-C5 Hydrocarbons by ASTM D6159-97 on Rt-Alumina BOND/KCl, Rtx-1

GC_PC01110

Column: Rt-Alumina BOND/KCl *, 50 m, 0.53 mm ID, 10 µm (cat.# 19760)
Injector: Split
Detector: FID

Refinery Gas on Rt-Alumina BOND (Na2SO4)

GC_PC01085

Column: Rt-Alumina BOND/Na2SO4, 50 m, 0.53 mm ID, 10 µm (cat.# 19756)
Injector: Split
Detector: FID

Permanent Gases and C1+C2 Hydrocarbons on ShinCarbon ST (micropacked)

GC_PC00665

Column: ShinCarbon ST, 100/120 mesh, 2m, 1/16in. OD, 1.0 mm ID (cat.# 19808)
Injector: On-Column - Packed
Detector: HID

Hydrocarbon Gases on HayeSep® S (micropacked)

GC_PC00187

Column: HayeSep® S, 100/120 mesh, 2m, 0.95mm OD, 0.75 mm ID (cat.# 19011)
Injector: Direct
Detector: FID

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