QuEChERS 2mL Micro-Centrifuge Tubes, Dispersive Solid Phase Extraction Kits
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JGF01002P QuEChERS Phase 2 Dispersive Kit N/A 2 mL 150mg MgSO4, 50mg PSA, 50mg C18, 7.5mg GCB 100 Case
$171.75
$161
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JGF00902P QuEChERS Phase 2 Dispersive Kit AOAC 2007.01 2 mL 150mg MgSO4, 25mg C18 100 Case
$131.42
$123
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JGF00802P QuEChERS Phase 2 Dispersive Kit AOAC 2007.01 2 mL 150mg MgSO4, 50mg PSA, 50mg C18, 50mg GCB 100 Case
$174.74
$164
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JGF00702P QuEChERS Phase 2 Dispersive Kit AOAC 2007.01 2 mL 150mg MgSO4, 50mg PSA, 50mg GCB 100 Case
$149.35
$140
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JGF00602P QuEChERS Phase 2 Dispersive Kit AOAC 2007.01 2 mL 150mg MgSO4, 50mg PSA, 50mg C18 100 Case
$159.79
$150
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JGF00502P QuEChERS Phase 2 Dispersive Kit AOAC 2007.01 2 mL 150mg MgSO4, 50mg PSA 100 Case
$135.90
$128
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JGF00402P QuEChERS Phase 2 Dispersive Kit European EN-15662, Mini-Multiresidue 2 mL 150mg MgSO4, 25mg PSA, 7.5mg GCB 100 Case
$141.88
$133
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JGF00302P QuEChERS Phase 2 Dispersive Kit European EN-15662, Mini-Multiresidue 2 mL 150mg MgSO4, 25mg PSA, 2.5mg GCB 100 Case
$141.88
$133
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JGF00202P QuEChERS Phase 2 Dispersive Kit European EN-15662, Mini-Multiresidue 2 mL 150mg MgSO4, 25mg PSA, 25mg C18 100 Case
$147.85
$139
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JGF00102P QuEChERS Phase 2 Dispersive Kit European EN-15662, Mini-Multiresidue 2 mL 150mg MgSO4, 25mg PSA 100 Case
$131.42
$123
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Description

The "QuEChERS" (Quick, Easy, Cheap, Effective, Rugged, and Safe) method, dispersive SPE (dSPE), is a sample prep technique that has become popular in the area of multi-residue pesticide analysis in food and agricultural products.

In 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. Upon shaking and centrifugation, an aliquot of the organic phase is subjected to further clean up using SPE. Unlike traditional methods using SPE tubes, in dispersive SPE, clean up is facilitated by mixing bulk amounts of SPE (e.g., Supelclean PSA, ENVI-Carb, and/or Discovery DSC-18) with the extract. After sample clean up, the mixture is centrifuged and the resulting supernatant can either be analyzed directly or can be subjected to minor further treatment before analysis.

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