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55299-U Supelco

Supel QuE

Z-Sep+ Bulk, pkg of 20 g

Synonym: QuEChERS

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Properties

Related Categories Analytical/Chromatography, QuEChERS Bulk Adsorbents and Salts, Sample Preparation & Purification, Solid Phase Extraction (SPE), Sorbents,
Quality Level   100
composition   Z-Sep+ Bulk
packaging   pkg of 20 g
matrix   silica gel base material
particle size   50 μm
pore size   70 Å pore size
surface area   480 m2/g
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

SupelQuE Z-Sep+ enhances sample cleanup for complex matrices by effectively removing more fat and color from sample extracts than traditional phases for QuEChERS LC-MS methods. By eliminating problematic matrix interferences, Z-Sep products provide more robust LC-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.

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 
nwg

Documents

Certificate of Analysis (COA)

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Protocols & Articles

Articles

GC Analysis of PCBs in Whole Cow Milk (Spiked) on SLB®-5ms (20 m x 0.18 mm I.D., 0.18 μm) after QuEChERS Cleanup using Supel™ QuE Z-Sep, Fast GC Analysis

From our library of Articles, Sigma-Aldrich presents GC Analysis of PCBs in Whole Cow Milk (Spiked) on SLB®-5ms (20 m x 0.18 mm I.D., 0.18 μm) after QuEChERS Cleanup using Supel™ QuE Z-Sep, Fast GC Analysis
Keywords: Chromatography, Electron capture detector, Gas chromatography, Purification, Sample preparations, Solid phase extractions

GC Analysis of Polynuclear Aromatic Hydrocarbons (PAHs) in Salmon on SPB®-608 (20 m x 0.18 mm I.D., 0.18 μm) after QuEChERS Cleanup using Supel™ QuE Z-Sep, Fast GC Analysis

From our library of Articles, Sigma-Aldrich presents GC Analysis of Polynuclear Aromatic Hydrocarbons (PAHs) in Salmon on SPB®-608 (20 m x 0.18 mm I.D., 0.18 μm) after QuEChERS Cleanup using Supel™ QuE Z-Sep, Fast GC Analysis
Keywords: Chromatography, Gas chromatography, Gas chromatography mass spectrometry, Mass spectrometry, Purification, Sample preparations, Solid phase extractions

Increase Removal of Fat & Pigments From Avocado Prior to GC-MS Analysis of Pesticide and Metabolite Residues

The health benefits of avocado are associated with its high content of healthy fat, fiber, vitamins, and minerals. Avocado consumption in the United States has steadily grown, with sources of the fru...
Katherine K. Stenerson and Jennifer Claus
Reporter US Volume 31.2
Keywords: Adsorption, Gas chromatography, Gas chromatography mass spectrometry, Gravimetric analysis, High performance liquid chromatography, Mass spectrometry, Pesticides, Solid phase extractions, Vitamins

Related Content

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

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