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Q-sep QuEChERS dSPE Tubes for Extract Cleanup

Fast, Simple Sample Prep for Multiresidue Pesticide Analysis

...—graphitized carbon blackNote: No entry in the Method column refers to dSPE formulations ... 26215_spe ... Q-sep QuEChERS dSPE Tubes for Extract Cleanup ... :► How to Choose the Right dSPE for QuEChERS...

Prepare Olive Oil Samples for Pesticide Residue Analysis in Half the Time with a Fraction of the Solvent Using dSPE (PDF 509kB)

...Simplify and speed up sample preparation with Resprep dSPE tubes! Here we show the extraction and material costs. Here we demonstrate the effi ciency of a dSPE cleanup procedure, as well ... "Pesticide Residue", "sample preparation", SPE, dSPE...

Comparing Pesticide Residues in Amish and Commercially Grown Strawberries and Spinach Using QuEChERS, Various dSPE Sorbents, and GC-TOFMS

...   Spinach Conclusion Abstract QuEChERS extraction, dSPE commercial and Amish growers. Various dSPE cleanup products were compared to determine which were most ... QuEChERS extraction, dSPE cleanup, and GC-TOFMS analysis were used to assess pesticide residue levels in strawberry and spinach from both commercial and Amish growers. Various dSPE sorbent products ... strawberry, "GC-TOFMS", QuEChERS, pesticide, "pesticide residue", spinach, dSPE...

Comparing Pesticide Residues in Amish and Commercially Grown Strawberries and Spinach Using QuEChERS, Various dSPE Sorbents, and GC-TOFMS (PDF 1781kB)

... Grown Strawberries and Spinach Using QuEChERS, Various dSPE Sorbents, and GC-TOFMS By Julie Kowalski , dSPE cleanup, and GC-TOFMS analysis were used to assess pesticide levels in strawberries and spinach ... pesticide residue, strawberry, spinach, sorbent, GC-TOFMS, QuEChERS, pesticide, dSPE...

Fast, Simple QuEChERS Extraction and Cleanup of Pesticide Residue Samples (PDF 1180kB)

...EChERS employs a novel and much quicker dispersive solid phase extraction cleanup (dSPE). QuEChERS methods using dSPE, a key improvement incorporated in the QuEChERS technique. Small polypropylene centrifuge ... sample prep, sample preparation, QuEChERS, dSPE, multiresidue, pesticides, Q-Sep...

Prepare Olive Oil Samples for Pesticide Residue Analysis in Half the Time With a Fraction of the Solvent Using dSPE

... and speed up sample preparation with Resprep dSPE tubes! Here we show the extraction labor and material costs. Here we demonstrate the efficiency of a dSPE cleanup procedure, as well ... Simplify and speed up sample preparation with Resprep dSPE tubes! Here we show the extraction of the solvent required for conventional SPE. ... "Pesticide Residue", "sample preparation", SPE, dSPE...

Fast Screening of Recalled Tylenol for Tribromoanisole and Related Adulterants (PDF 283kB)

... and centrifugation step, with an optional dispersive solid phase extraction (dSPE) cleanup. In addition to being dispersive solid phase extraction methods (dSPE) were compared. For each, 1 mL portions of QuEChERS extracts ... Tylenol, Tribromoanisole, adulterants, TBA, TBP, quechers, Rxi-5Sil MS, dSPE...

QuEChERS Approach

... and provided with 50mL centrifuge tubes. The dSPE centrifuge tubes, available in 2mL and 15mL sizes, contain and cleaned, using a dispersive SPE technique. Multiple adsorbents are placed in a centrifuge tube, along ... QuEChERs, dSPE...

Evaluation of Dispersive and Cartridge Solid Phase Extraction (SPE) Cleanups for Multiresidue Pesticides in QuEChERS Extracts of Finished Tobacco Using GCxGC-TOFMS (PDF 4409kB)

... extraction (dSPE) cleanup and the more traditional cartridge solid phase extraction (cSPE) cleanup that the dSPE cleanup formulation with 7.5 mg of carbon (verses 50 mg) provided the best recovery of targeted...

QuEChERS Sample Preparation Procedures (PDF 2089kB)

... phase extraction media (dSPE). Sugars, fatty acids, organic acids, pigments, lipids, and other potential .restek.com/quechers to determine which dSPE product works best for your sample type. Stage 1: Sample Extraction ORIGINAL...

Fast, Simple Sample Cleanup Using QuEChERS SPE Tubes

... extraction cleanup (dSPE). QuEChERS methods, including an AOAC Official Method [2] and modifications is cleaned up using dSPE, a key improvement incorporated in the QuEChERS technique. Small polypropylene ... (dSPE). QuEChERS methods are convenient, rugged methods that simplify extract cleanup, reduce ... QuEChERS, dSPE, strawberries, multiresidue, pesticides...

ChromaBLOGraphy: What dSPE works with spinach in GC-MS/MS analysis? #NationalSpinachDay

Today is a National Spinach Day! What is a better way to celebrate than to talk about spinach analysis? During part 1 of my blog series, I discussed what dSPE was best for celery. I found that most dSPE, with the exception of dSPE containing high amounts of graphitized carbon black (GBC), showed acceptable analyte recovery […]

Developing New Methods for Pesticides in Dietary Supplements (PDF 4634kB)

... dispersive solid phase extraction (dSPE) cleanup of the extract. Because of these benefits, the approach has , we knew that while the extraction part of QuEChERS would be successful, the dSPE cleanup step...

QuEChERS Made Even Easier: Comprehensive Solutions Simplify Sample Prep and Analysis (PDF 5489kB)

... the use of a dispersive solid phase extraction (dSPE) step that is also quick and easy to perform of dSPE. Stage 2 offers a variety of cleanup options that can be selected to match the specific...

ChromaBLOGraphy: Choosing the right dispersive SPE for GC-MS/MS analysis of celery

I’ve recently started experimenting with QuEChERS extractions for pesticide analysis. The available options are overwhelming, especially when it comes to dispersive solid phase extraction (dSPE) for the cleanup. For starters, I’ve been looking at the smaller volume dSPE (2 mL, summarized in Table 1), because I didn’t want to waste the raw material, solvents and […]

News: Comparing Pesticide Residues in Amish and Commercially Grown Strawberries and Spinach Using QuEChERS, Various dSPE Sorbents, and GC-TOFMS

Author(s): Julie Kowalski, Jack Cochran Published By: Restek Corporation Year of Publication: 2011 Link: http://www.restek.com/Technical-Resources/Technical-Library/Foods-Flavors-Fragrances/fff_an1321 Abstract: QuEChERS extraction, dSPE cleanup, and GC-TOFMS analysis were used to assess pesticide residue levels in strawberry and spinach from both commercial and Amish growers. … Continue reading

ChromaBLOGraphy: Are fatty acids overwhelming your QuEChERS dSPE PSA cleanup and causing issues in your GC analysis? Get more cleanup capacity with cartridge SPE cleanup!

Fatty acids are important molecules in the human body because they are used as a source of fuel.  There are many food sources of both “healthy” and “unhealthy” fatty acids.  Many sources of dietary fatty acids come from fruits, vegetables, seeds, nuts, and animal fats.  The QuEChERS methodology was developed to analyze pesticides in fruits […]

Fast Screening of Recalled Tylenol for Tribromoanisole and Related Adulterants Using QuEChERS and GC-TOFMS

... shake and centrifugation step, with an optional dispersive solid phase extraction (dSPE) cleanup Four dispersive solid phase extraction methods (dSPE) were compared. For each, 1 mL portions of Qu ... Tylenol, recall, GC/TOF-MS, TBA, TBP, QuEChERS, sample prep, dSPE, Rxi-5Sil MS...

Pesticides in Dietary Supplements: Advantages of QuEChERS vs. PAM 303

... methods, dispersive solid phase extraction (dSPE) and cartridge solid phase extraction (cSPE), were compared. We determined that dSPE did not have the sorbent capacity to adequately clean up sample extracts ... PAM 303, SPE, cSPE, QuEChERS, pesticides, multiresidue, dietary supplements, sample prep , sample preparation, dSPE...

ChromaBLOGraphy: Shortcut: AOAC QuEChERS protocol

Here is our checklist style protocol based on the AOAC 2007.01 QuEChERS method. The document describes producing spiked samples at 10 ppb and no spiked samples that are used to determine incurred pesticides. Commodity samples that are not spiked as also used to product matrix-matched standards. During method development we usually test more than one […]

ChromaBLOGraphy: Difficult QuEChERS extracts: Removing fatty acid interferences

Using the QuEChERS extraction and cleanup method for high fat commodities such as, nuts, dairy, fish, and avocado can be difficult to analyze for pesticide residues.  Using the dispersive solid phase (dSPE) cleanup sometimes is just not enough to adequately remove the fatty acid co-extractives. Check out this technical article on how to quickly yet […]

QuEChERS Solutions

Learn how to use the QuEChERS approach to perform faster, easier sample preparation and cleanup for multiresidue pesticide analysis. Q-sep QuEChERS p...

ChromaBLOGraphy: QuEChERS with dSPE A-OK at NMISA

QuEChERS is the popular “Quick, Easy, Cheap, Effective, Rugged, and Safe” sample preparation method for pesticides in fruits/vegetables that includes a dispersive solid phase extraction (dSPE) cleanup (shake extract with loose sorbent material, e.g. PSA, C18, GCB; more acronyms!). While in South Africa at ChromSA’s request to do GC training courses I had several slides [...]

A Comprehensive Approach to Pesticide Residue Monitoring, Including Non-target Analysis, for Fruits, Vegetables, and Nuts, Using QuEChERS, LC-MS/MS, and GCxGC-TOFMS (PDF 2552kB)

... pesticides in the most complex samples. In this regard, dispersive SPE (dSPE) cleanup was ineffective phase extraction (dSPE) cleanup of the extract. It is well established that QuEChERS can result in good...

ChromaBLOGraphy: Thiabendazole – Planar Pesticide Loss to Graphitized Carbon Black during Dispersive Solid Phase Extraction Cleanup for QuEChERS

 Anyone who has done QuEChERS for pesticide residue sample preparation knows that a critical part of the approach is the novel dispersive solid phase extraction (dSPE) cleanup, whereby the extract is simply shaken with loose sorbent material to remove matrix interferences and then centrifuged.  An aliquot of the cleaned extract is then removed for analysis [...]

ChromaBLOGraphy: Is There Vitamin P in your Dietary Supplement? Use QuEChERS and find out.

My colleagues Jason Thomas, Michelle Misselwitz, Julie Kowalski and I recently developed a QuEChERS extraction approach for pesticides (Vitamin P) in dietary supplements, including dandelion, ginseng, barberry, sage, yellow dock, green tea, and finished products (blends of individual botanicals). We found that dispersive solid phase extraction (dSPE) did not have the capacity to clean up [...]

ChromaBLOGraphy: QuonFuseD by QuEChERS?

Currently the big push for sample prep is using QuEChERS, which stands for “Quick, Easy, Cheap, Effective, Rugged, and Safe”. It is a much more streamlined method, when compared to traditional liquid/liquid extractions and even SPE. Pesticide residues in various matrices are often analyzed by QuEChERS methodology, and today it is probably the most often [...]

Determining Pesticides in Dietary Supplements with QuEChERS Extraction, Cartridge SPE, and GCxGC-TOFMS (PDF 1695kB)

... with a Q-sep 3000 centrifuge (cat.# 26230).Extract CleanupDispersive SPE (dSPE) cleanup is typically associated with the QuEChERS approach,but previous work indicated sorbent capacitywith the EN dSPE PSA tubes...

ChromaBLOGraphy: QuEChERS Extraction of Oil Contaminated Seafood – PAHs

“Growing up” as an environmental analytical chemist, I always think of hydrophobic contaminants, like Polycyclic Aromatic Hydrocarbons (or PAHs), needing hydrophobic solvents to isolate/extract them from hydrophobic matrices, like fish or seafood. (Dang, he’s using hydrophobic so much he must be rabid…) In fact, I’d seen reduced recoveries when trying to QuEChERS extract (with polar [...]

Evaluation of Dispersive and Cartridge Solid Phase Extraction (SPE) Cleanups for Multiresidue Pesticides in QuEChERS Extracts of Finished Tobacco Using GCxGC-TOFMS

... extraction (dSPE) cleanup and the more traditional cartridge solid phase extraction (cSPE) cleanup that the dSPE cleanup formulation with 7.5 mg of carbon (verses 50 mg) provided the best recovery of targeted ... We compared the efficacy of dSPE and cSPE cleanup methods for multiresidue pesticide analysis of Qu EChERS extracts of finished tobacco products using GCxGC-TOFMS. Cleanup with dSPE tubes containing 7.5 mg of GCB...

Mitigating Matrix Effects: Examination of Dilution, QuEChERS, and Calibration Strategies for LC-MS/MS Analysis of Pesticide Residues in Diverse Food Types (PDF 1561kB)

... Hill, MA). QuEChERS extraction and dispersive solid phase extraction (dSPE) tubes, as well as Qu .restek.com 4 QuEChERS Dispersive Solid Phase Extraction (dSPE) Cleanup Restek Q-sep dSPE tubes were used...

ChromaBLOGraphy: Shortcut: QuEChERS EN and Original Methods Protocol

  I work with a group of colleagues on a lot of projects that use QuEChERS. For more information about QuEChERS take a look at these A Primer, Beyond the Basics, The Concept. We developed a quick protocol for performing generic QuEChERS sample preparation during the method development phase of a project. This type of […]

News: QuEChERS, GC Smoke Out Tobacco Pesticides

Author(s): Michelle Misselwitz, Jack Cochran, Julie Kowalski Restek Corporation Published By: Chromatography Techniques Year of Publication: 2014 Link: http://www.chromatographytechniques.com/articles/2013/12/quechers-gc-smoke-out-tobacco-pesticides Abstract: Pesticides are used heavily on tobacco in order to increase crop production value; however, limited regulation creates the potential for high … Continue reading

7.5-Min Screening Analysis of Multiresidue Pesticides in Brown Rice Flour (PDF 1543kB)

... multiresidue pesticide kit, extracted with Q-sep QuEChERS extraction salts, cleaned up using dSPE centrifugation, 1 mL supernatant was added to a 2 mL dSPE vial containing magnesium sulfate, PSA, and C18 (cat...

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

... mm autosamplers, including UHPLC instruments. 15 mL dSPE tubes also available at www EChERS dSPE Tubes for Extract Cleanup Ready-to-use tubes packaged in foil for enhanced protection...

News: Evaluation of Dispersive and Cartridge Solid Phase Extraction (SPE) Cleanups for Multiresidue Pesticides in QuEChERS Extracts of Finished Tobacco Using GCxGC-TOFMS

Author(s): Michelle Misselwitz, Jack Cochran, and Julie Kowalski Restek Corporation Published By: Restek Corporation Year of Publication: 2013 Link: http://www.restek.com/Technical-Resources/Technical-Library/Foods-Flavors-Fragrances/fff_FFAN1823-UNV Abstract: Tobacco is a high-value production crop for the United States and ranks 6th in the amount of pesticides applied per … Continue reading

News: Analysis of Pesticides in Dietary Supplements: Evaluation of QuEChERS, Cartridge SPE Clean-Up, and Gas Chromatography Time-of-Flight Mass Spectrometry

Author(s): Julie Kowalski, Michelle Misselwitz, Jason Thomas, Jack Cochran Published By: Agro FOOD INDUSTRY Hi-tech today Issue: Sept./Oct. Focus on Food Analysis supplement, vol. 22, no. 5 Year of Publication: 2011 Link: http://agro-food-industry.teknoscienze.com/testata.asp?id_testata=244&folder=supplements Abstract: New requirements for dietary supplements to … Continue reading

News: QuEChERS: A Primer

Author(s): Julie Kowalski and Jack Cochran Restek Corporation Published By: Separation Science Issue: vol. 4, issue 12 Year of Publication: 2012 Link: http://www.sepscience.com/Techniques/Sample-Prep/Articles/865-/QuEChERS-A-Primer For the full print issue, visit http://www.sepscience.com/docs/Bespoke/Editions/SepSci/Sepsci1012eu.pdf?utm_source=iContact&utm_medium=email&utm_campaign=eLearning%20Newsletter%20-%20Europe%20Sep%20Sci&utm_content= Abstract: Quick, Easy, Cheap, Effective, Rugged and Safe, the QuEChERS (pronounced “catchers”) … Continue reading

Restek Essentials (PDF 1623kB)

... UHPLC. Le provette dSPE da 15 mL sono disponibili anche su www.restek.com/it/quechers. Qu dello 0,4% di evaporazione nell'arco delle 24 ore. Q-sep QuEChERS dSPE Provette per la pulizia dell...

Ensure Successful Polycyclic Aromatic Hydrocarbon (PAH) Analysis—Choose Specialized Rxi-PAH Columns (PDF 7240kB)

... and paprika were extracted using QuEChERS methodology. - dSPE cleanup was performed on oyster extracts ; Acquisition Range: 45-550 amu; Spectral Acquisition Rate: 5 spectra/sec; Instrument: LECO Pegasus 4D GCx...

ChromaBLOGraphy: QuEChERS – Where to start?

Enjoy the tip!* I am often asked for QuEChERS product recommendations. Usually the request is something like, “I need to test pesticides in _____” and that blank can be just about anything…sometimes not even food. Unless it is something I have tested before, I usually take a quick look online to determine the approximate composition […]

Restek Advantage, 2012.1 (PDF 14846kB)

... using Q-sep QuEChERS extraction salts and dSPE tubes. QuEChERS (Quick phase extraction (dSPE) cleanup of the extract. The foods chosen varied in water, fat, and pigment...

News: A Comprehensive Approach to Pesticide Residue Testing, Including Non-Target Analysis, for Fruits, Vegetables, and Nuts, Using QuEChERS, LC-MS/MS, and GCxGC-TOFMS

Author(s): Jack Cochran1, Julie Kowalski1, Jason Thomas1, Michelle Misselwitz1, Rebecca Wittrig2*, Andre Schreiber3 1Restek Corporation, 110 Benner Circle, Bellefonte, Pennsylvania 16823, USA 2AB SCIEX, 353 Hatch Drive, Foster City, California 94404, USA 3AB SCIEX Research and Development, 71 Four Valley … Continue reading

Restek Essentials: Featured Chromatography Products 2019.2 (PDF 5798kB)

... These are just our starter kits; visit www.restek.com/radiello for our full selection! For ready-to-use dSPE (s) Restek Reference Standard(s) Chromatogram# D7169 Standard Test Method for Boiling Point Distribution...

ChromaBLOGraphy: Analyzing pesticides in herbal tea using QuEChERS and GCxGC-TOFMS of course!

Herbal tea, a non-caffeinated drink made from plants, herbs, or spices has been used throughout history for its potential medicinal benefit.   Various herbal material is mixed depending on the desired medicinal or flavor properties for the tea.   As with any plant based commodity, there is the potential for pesticide residues to remain in the final […]

Determining Pesticides in Dietary Supplements with QuEChERS Extraction, Cartridge SPE, and GCxGC-TOFMS

...). Extract Cleanup Dispersive SPE (dSPE) cleanup is typically associated with the QuEChERS approach , but previous work indicated sorbent capacity with the EN dSPE PSA tubes was inadequate [1]; therefore, several ... The novel approach used here combines QuEChERS extraction, cartridge SPE cleanup, and GCx...

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A Comprehensive Approach to Pesticide Residue Testing, Including Non-Target Analysis, for Fruits, Vegetables, and Nuts, Using QuEChERS, LC-MS/MS, and GCxGC-TOFMS

... for determining certain pesticides in the most complex samples. In this regard, dispersive SPE (dSPE) cleanup to extract pesticide residues from fruits and vegetables, followed by a dispersive solid phase extraction (dSPE...

Restek Essentials (PDF 1881kB)

... trovare le provette dSPE pronte all’uso e altri prodotti QuEChERS alla pagina www ’ampia gamma di sostanze chimiche con i versatili campionatori d’aria radiello. Di facile utilizzo e ideali...

Restek Essentials (PDF 6898kB)

... des kits : consultez www.restek.fr Tubes QuEChERS Q-sep pour purification d'extraits par dSPE Filtres à gaz Super Clean Tubes radiello pour l'échantillonnage d'air passif Idéals pour l...

Mitigating Matrix Effects: Examination of Dilution, QuEChERS, and Calibration Strategies for LC-MS/MS Analysis of Pesticide Residues in Diverse Food Types

...EChERS extraction and dispersive solid phase extraction (dSPE) tubes, as well as QuEChERS internal and quality . QuEChERS Dispersive Solid Phase Extraction (dSPE) Cleanup Restek Q-sep dSPE tubes were used...

News: Presentations Announced for AOAC 2012

The AOAC annual meeting is fast approaching. Beginning this Sunday, September 30th and running through next Wednesday, October 3rd, the 2012 AOAC meeting in Las Vegas, Nevada promises to be another exciting conference. The final program has been announced and … Continue reading

Growing Analytical Solutions for Cannabis Testing: Innovative Products and Expertise for Fast, Accurate, Reliable Results (PDF 8575kB)

... refers to dSPE formulations not specifically included in one of the cited references. These products can -sep QuEChERS dSPE Tubes for Extract Cleanup Fast, Simple Sample Prep for Multiresidue Pesticide Analysis...

ChromaBLOGraphy: Pesticide analysis for cannabis flower: method and data overview

Pesticides in cannabis has been a hot topic lately and we have been getting many requests for help with this analysis. We did work on pesticide residue testing in cannabis about 6 years ago. At that time, we were limited to testing our methods with a small amount of seized material. Recently, we have been […]

Frequently Asked Questions: Sample Preparation

Frequently Asked Questions: Sample Preparation FAQ

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

LC Multiresidue Pesticide Mix Extracted from Celery with QuEChERS Slim Pouch on Raptor ARC-18 by LC-MS/MS

LC_FS0522

Column: Raptor ARC-18 (cat.# 9314A12), Dimensions:100 mm x 2.1 mm ID, Particle Size: 2.7 µm, Pore Size: 90 Å, Temperature: 50 °C
Detector: MS/MS

LC Multiresidue Pesticide Mix Extracted from Brown Rice Flour with QuEChERS Slim Pouch on Raptor ARC-18 by LC-MS/MS

LC_FS0521

Column: Raptor ARC-18 (cat.# 9314A12), Dimensions:100 mm x 2.1 mm ID, Particle Size: 2.7 µm, Pore Size: 90 Å, Temperature: 50 °C
Detector: MS/MS

Benz[a]anthracene, Triphenylene, and Chrysene on Rxi-PAH After Repeated Matrix Injections

GC_FS0543

Column: Rxi-PAH, 40 m, 0.18 mm ID, 0.07 µm (cat.# 49316)
Injector: Pulsed Splitless
Detector: FID

GCxGC-TOFMS Analysis of Unfortified Tobacco Extract After QuEChERS Extraction and dSPE Cleanup With 25 mg PSA and 7.5 mg GCB

GC_FF1242

Column: Rxi-5Sil MS 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)Rtx-200 1.3 m, 0.25 mm ID, 0.25 µm (cat.# 15124)
Injector: Splitless
Detector: MS-TOF

Pesticide Residue Analysis in Kale by LC-MS/MS on Ultra Aqueous C18

LC_FF0516

Column: Ultra Aqueous C18 (cat.# 9178312), Dimensions:100 mm x 2.1 mm ID, Particle Size: 3 µm, Pore Size: 100 Å, Temperature: 50 °C
Detector: ABSCIEX MS/MS

Incurred Pesticides in Red Bell Pepper QuEChERS Extract on Ultra Aqueous C18

LC_FF0515

Column: Ultra Aqueous C18 (cat.# 9178312), Dimensions:100 mm x 2.1 mm ID, Particle Size: 3 µm, Pore Size: 100 Å
Detector: AB SCIEX API 4000 LC/MS/MS System

GCxGC-TOFMS Chromatogram of QuEChERS Extract of Lemon Using Rxi-5Sil MS and Rtx-200

GC_FF1218

Column: Rxi-5Sil MS 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)Rtx-200 1.5 m, 0.18 mm ID, 0.20 µm (cat.# 45001)
Injector: Splitless
Detector: TOFMS

GCxGC-TOFMS Chromatogram of QuEChERS Extract of Red Bell Pepper Showing Incurred Pesticides Using Rxi-5Sil MS and Rtx-200

GC_FF1219

Column: Rxi-5Sil MS 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)Rtx-200 1.5 m, 0.18 mm ID, 0.20 µm (cat.# 45001)
Injector: Splitless
Detector: TOFMS

GCxGC-TOFMS Chromatogram of QuEChERS Extract of Red Bell Pepper Showing Incurred Pesticides Using Rxi-5Sil MS and Rtx-200

GC_FF1220

Column: Rxi-5Sil MS 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)Rtx-200 1.5 m, 0.18 mm ID, 0.20 µm (cat.# 45001)
Injector: Splitless
Detector: TOFMS

GCxGC-TOFMS Chromatogram of QuEChERS Extract of Black Seedless Grapes Using Rxi-5Sil MS and Rtx-200

GC_FF1217

Column: Rxi-5Sil MS 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)Rtx-200 1.5 m, 0.18 mm ID, 0.20 µm (cat.# 45001)
Injector: Splitless
Detector: TOFMS

Pesticides on Sweet Potato With and Without QuEChERS dSPE Cleanup on Rxi-5Sil MS

GC_FF01125_1127

Column: Rxi-5Sil MS, 20 m, 0.18 mm ID, 0.18 µm (cat.# 43602)
Injector: Splitless
Detector: MS-TOF

Polycyclic Aromatic Hydrocarbons Infant Formula With and Without QuEChERS dSPE Cleanup on Rxi-5Sil MS

GC_FF01122

Column: Rxi®-5Sil MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)
Injector: Splitless
Detector: MS-Scan

Polycyclic Aromatic Hydrocarbons Infant Formula with and without QuEChERS dSPE Clean-up on Rxi-5Sil MS

GC_FF01123

Column: Rxi-5Sil MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)
Injector: Splitless
Detector: MS-SIM

Comparison of Strawberry Extracts (TICs) Processed with Different QuEChERS dSPE Sorbents on Rxi-5Sil MS

GC_FF1199

Column: Rxi-5Sil MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)
Injector: Splitless
Detector: MS-Scan

Comparison of Spinach Extracts (TICs) Processed with Different QuEChERS dSPE Sorbents on Rxi-5Sil MS

GC_FF1200

Column: Rxi-5Sil MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)
Injector: Splitless
Detector: MS-Scan

Extracted Ion Chromatograms and Spectra for Incurred Pesticides in Strawberries on Rxi-5Sil MS

GC_FF1201

Column: Rxi-5Sil MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)
Injector: Splitless
Detector: MS-Scan

Pesticides in QuEChERS Extract of Sweet Potato on Rxi-5Sil MS

GC_FF01133

Column: Rxi®-5Sil MS, 20 m, 0.18 mm ID, 0.18 µm (cat.# 43602)
Injector: Splitless
Detector: TOFMS

Pesticides in QuEChERS Extract of Sweet Potato on Rxi-5Sil MS

GC_FF1125

Column: Rxi®-5Sil MS, 20 m, 0.18 mm ID, 0.18 µm (cat.# 43602)
Injector: Splitless
Detector: TOFMS

dSPE vs. cSPE Sample Cleanup of Dandelion Root Powder (Dietary Supplement) on Rxi-5Sil MS

GC_FF1171

Column: Rxi-5Sil MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)
Injector: Splitless
Detector: MS-Scan

Chlorinated Pesticide Residues in Olive Oil Rtx-CLPesticides2

GC_FF01043

Column: Rtx-CLPesticides2, 30 m, 0.25 mm ID, 0.20 µm (cat.# 11323)
Injector: Splitless
Detector: MS-SIM

QuEChERS Extracts of Tylenol with Different dSPE Cleanups on Rxi-5Sil MS

GC_GN1151

Column: Rxi-5Sil MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)
Injector: Splitless
Detector: TOFMS

QuEChERS Extracts of Tylenol Spiked with Anisoles and TBA on Rxi-5Sil MS

GC_GN1152

Column: Rxi-5Sil MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)
Injector: Splitless
Detector: TOFMS

Mass Spectra of Pentachloroanisole QuEChERS Extracts of Tylenol Spiked with Anisoles and TBA on Rxi-5Sil MS

GC_GN1153

Column: Rxi-5Sil MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)
Injector: Splitless
Detector: TOFMS

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