Supel QuE Verde Tube, centrifuge tube volume 15 mL, pack of 50 each

SKU:
55442-U
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  • Description

    Supel QuE Verde Tube, centrifuge tube volume 15 mL, pack of 50 each

    composition

    magnesium sulfate, 1200 mg
    Supelclean ENVI-Carb Y, 80 mg
    Supelclean PSA, 400 mg
    Z-Sep+, 480 mg

    packaging

    pack of 50 each

    centrifuge tube volume

    15 mL

    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.

    Suitability

    Designed to provide high recovery all pesticides, including problematic planar pesticides, in samples containing high levels of chlorophyll (e.g. cannabis, spinach, lettuce, oregano, etc.). Ideal for cleanup of extract after initial food extraction and phase partitioning.

    Legal Information

    AOAC is a registered trademark of AOAC International
    ENVI-Carb is a trademark of Sigma-Aldrich Co. LLC
    Supel is a trademark of Sigma-Aldrich Co. LLC
    Supelclean is a trademark of Sigma-Aldrich Co. LLC

    SAFETY INFORMATION

    RIDADR

    UN 3261 8 / PGII

    SDS

    Sample COA