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55408-U Supelco

Supel QuE

Z-Sep+ Tube, centrifuge tube volume 2 mL, pack of 100 ea

Synonym: QuEChERS

  •  NACRES NB.21

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Properties

Related Categories Analytical/Chromatography, Sample Preparation & Purification, Solid Phase Extraction (SPE), Supel QuE (QuEChERS) Products, Z-Sep Specialty Products for Challenging Matrices More...
Quality Level   100
composition   Z-Sep+, 75 mg
packaging   pack of 100 ea
centrifuge tube volume   2 mL
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.

Other Notes

Supel QuE Z-Sep products enhance sample cleanup for complex matrices by effectively removing more fat and color from sample extracts than traditional phases for QuEChERS methods. By eliminating problematic matrix interferences, Z-Sep products provide more robust LC-MS and GC-MS methods. This proprietary technology can replace C18 and PSA in your current methods without additional method development.

Z-Sep+ is recommended for cleanup of samples containing greater than 15% fat.
Z-Sep/C18 is recommended for cleanup of samples containing less than 15% fat.
Z-Sep is recommended for cleanup of samples prior to analysis of hydrophobic analytes.

Legal Information

Certain uses of this product may be covered by the claims of one or more pending patent applications. For licensing inquiries please contact techserv@sial.com

AOAC is a registered trademark of AOAC International

Supel is a trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
nwg

Documents

Certificate of Analysis (COA)

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Protocols & Articles

Articles

Analysis of Fipronil and Fipronil Sulfone in Eggs, Chicken Meat and Mayonnaise

Fipronil is a broad spectrum insecticide that is in the European Union (EU)1 not permitted to be use with food producing animals. Fipronil sulfone is formed by degradation of fipronil, and is actuall...
Katherine Stenerson
Keywords: Degradations, Gas chromatography, Insecticides, Mass spectrometry, Sample preparations

Determination of Fipronil and Fipronil Sulfone in Food Using Purospher STAR RP-18 Endcapped Column and UV Detection

Fipronil is normally used as a broad spectrum insecticide to treat dogs and cats for fleas and to combat red lice in poultry. Fipronil sulfone is a degradation product of fipronil, and is more toxic ...
Anita Piper
Keywords: Chromatography, Degradations, High performance liquid chromatography, Insecticides, Liquid chromatography mass spectrometry, Mass spectrometry, Pesticides, Sample preparations, Solid phase extractions

GC Analysis of Fipronil in Eggs on the SLB®PAHms Column after QuEChERS Extraction and Cleanup Using ZSep+

From our library of Articles, Sigma-Aldrich presents GC Analysis of Fipronil in Eggs on the SLB®PAHms Column after QuEChERS Extraction and Cleanup Using ZSep+
Keywords: Gas chromatography, Mass spectrometry

LC/MS/MS Analysis of Pesticide Residues in Pistachios on the Ascentis® Express RP-Amide Column after QuEChERS Extraction

From our library of Articles, Sigma-Aldrich presents LC/MS/MS Analysis of Pesticide Residues in Pistachios on the Ascentis® Express RP-Amide Column after QuEChERS Extraction
Keywords: High performance liquid chromatography, Liquid chromatography mass spectrometry, Mass spectrometry, Pesticides, Sample preparations, Solid phase extractions

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 ph...
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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