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Supel™ QuE

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Code: 55228-U
Hãng sản xuất: Supelco
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Supel QuE

PSA Tube, pk of 50, suitable for EN 15662:2008 per BS

Synonym: QuEChERS


Related Categories Analytical/Chromatography, EN 15662, Sample Preparation & Purification, Solid Phase Extraction (SPE), Supel QuE (QuEChERS) Products 
composition   magnesium sulfate, 900 mg
PSA, 150 mg (Cat. No. 52738-U)
packaging   pk of 50
centrifuge tube volume   12 mL , Greiner Cat. No. 163270
suitability   suitable for EN 15662:2008 per BS
mode of chromatography   Normal phase


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.


Suitable for food/agricultural samples low in fat, chlorophyll, and carotinoide content. Ideal for clean up of 6 mL extract after initial food extraction and phase partitioning.

Legal Information

Supel is a trademark of Sigma-Aldrich Co. LLC

Supelclean is a trademark of Sigma-Aldrich Co. LLC

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