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55407-U Supelco

Supel QuE

Z-Sep with MgSO4 Tube, centrifuge tube volume 12 mL, pack of 50 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   Magnesium Sulfate, 900 mg
  Z-Sep, 300 mg
packaging   pack of 50 ea
centrifuge tube volume   12 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.

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

Supel is a trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3

Documents

Certificate of Analysis (COA)

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Protocols & Articles

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
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References

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