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55289-U Supelco

Supel QuE

PSA/C18/ENVI-Carb Tube, pack of 100, AOAC® 2007.01

Synonym: QuEChERS

  •  NACRES NB.21

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Properties

Related Categories AOAC 2007.01, Analytical/Chromatography, Sample Preparation & Purification, Solid Phase Extraction (SPE), Supel QuE (QuEChERS) Products More...
composition   Discovery® DSC-18, 50 mg (;)
  ENVI-Carb, 50 mg
  magnesium sulfate, 150 mg
  Supelclean PSA, 50 mg
packaging   pack of 100
centrifuge tube volume   2 mL
Agency/Method   AOAC® 2007.01
Featured Industry   Food and Beverages

Description

General description

Dispersive SPE (dSPE), often referred to as the "QuEChERS" method (Quick, Easy, Cheap, Effective, Rugged, and Safe), is modern sample prep technique that is becoming increasingly popular in the area of multi-residue pesticide analysis in food and agricultural products.

Using the QuEChERS method, food/agricultural samples are first extracted with an aqueous miscible solvent (e.g., acetonitrile) in the presence of high amounts of salts (e.g., sodium chloride and magnesium sulfate) and/or buffering agents (e.g. citrate) to induce liquid phase separation and stabilize acid and base labile pesticides, respectively. Upon shaking and centrifugation, an aliquot of the organic phase is subjected to further cleanup using SPE. Unlike traditional methods using SPE tubes, in dispersive SPE, cleanup is facilitated by mixing bulk amounts of SPE (e.g., Supelclean PSA, ENVI-Carb, and/or Discovery DSC-18) with the extract. After sample cleanup, the mixture is centrifuged and the resulting supernatant can either be analyzed directly or can be subjected to minor further treatment before analysis.

Supelco carries a line of vials and centrifuge tubes containing pre-determined amounts of salts and SPE sorbents to support the most common method configurations used today.

Legal Information

AOAC is a registered trademark of AOAC International

Discovery is a registered trademark of Sigma-Aldrich Co. LLC

Supel is a trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

Symbol 
GHS08  GHS08
Signal word 
Warning
Hazard statements 
Precautionary statements 
RIDADR 
NONH for all modes of transport
WGK Germany 
3

Documents

Certificate of Analysis

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Protocols & Articles

Articles

Analysis of Pesticide Residues in Cannabis Using QuEChERS Extraction and Cleanup Followed by GC/MS/MS Analysis

Cannabis (marijuana) has been legalized for recreational and/or medical use by 23 states, the District of Columbia, and the territory of Guam. Thus, regulations regarding its production have become a...
Kathy Stenerson, and Michael Halpenny
Reporter US Volume 34.1
Keywords: Capillary electrophoresis, Fungicides, Gas chromatography, Insecticides, Mass spectrometry, Pesticides, Sample preparations

Approaches to the Analysis of the Oregon List of Pesticides in Cannabis Using QuEChERS Extraction and Cleanup

Consumption of cannabis and / or cannabis-based products is currently legal in some form in 33 US states plus the District of Columbia. Testing of the plant materials and products is required by many...
Keywords: Adsorption, Capillary electrophoresis, Environmental, Fungicides, Gas chromatography, Gas chromatography mass spectrometry, High performance liquid chromatography, Liquid chromatography mass spectrometry, Mass selective detector, Mass spectrometry, Oxidations, Pesticides, Reductions, Separation

Comparison of QuEChERS Products for the Extraction of Planar Pesticides from Spinach

Hexachlorobenzene and chlorothalonil are pesticides with planar structures that are commonly used during the cultivation of spinach and other leafy, green crops. The presence of large pigment molecul...
Michael Ye, Jennifer Claus
Reporter US Volume 34.3
Keywords: Adsorption, Gas chromatography, High performance liquid chromatography, Mass selective detector, Mass spectrometry, Pesticides

Improved Recoveries and Lower Background for GC/MS/MS and LC/MS/MS Analysis of Pesticides in Green Tea

Tea is second only to water as the most popular beverage worldwide. All teas come from the leaves of the same plant, camellia sinensis. The various types of tea arise from differences in how and wher...
Katherine K. Stenerson
Reporter US Volume 34.4
Keywords: Agriculture, Capillary electrophoresis, Gas chromatography, High performance liquid chromatography, Mass spectrometry, Oxidations, Pesticides, Reductions, Solid phase extractions, Vitamins

QuEChERS Method for Pesticide Residue Analysis

QuEChERS significantly improves laboratory efficiency and throughput. This procedure requires only small quantities of solvent and is capable of generating recoveries of 70-120% with RSDs <5% for a w...
Keywords: Buffers, Calorimetry, Gas chromatography, Gas chromatography mass spectrometry, High performance liquid chromatography, Liquid chromatography mass spectrometry, Mass spectrometry, Pesticides

Related Content

Introducing Supel™ QuE Z-Sep Sorbents for QuEChERS [Video]

QuEChERs is a solid phase extraction (SPE) technique for sample preparation.  Supelco's innovative Z-Sep and  Z-Sep+ sorbents demonstrated here extract more fat and pigment than traditional PSA/C18 p...
Keywords: Sample preparations, Solid phase extractions

SPE Cartridges (Tubes) - Phase Selection Guide

The SPE Tube Configuraton Guide will help you choose the appropriate bed weight and cartridge dimensions.
Keywords: Agriculture, Calorimetry, Environmental, Fractionation, High performance liquid chromatography, Liquid chromatography mass spectrometry, Mass spectrometry, Pesticides, Pharmaceutical, Solid phase extractions

Solid Phase Extraction: Fundamentals and Recent Developments [Webinar]

Solid Phase Extraction (SPE) has become a popular technique for sample preparation due to its convenience, effectiveness, relatively low solvent usage and versatility. The focus of this webinar is on...
Keywords: Sample preparations, Solid phase extractions

Peer-Reviewed Papers
15

References

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