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Supel QuE QuEChERS tube, Non-Buffered Tube 1, pk of 50

SKU:
55294-U
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  • Description

    Supel QuE QuEChERS tube

    Non-Buffered Tube 1, pk of 50

    Synonym(s):

    QuEChERS

    About This Item

    UNSPSC Code:
    41115712
    NACRES:
    NB.21

    Properties

    product name

    Supel QuE, Non-Buffered Tube 1, pk of 50

    material

    polypropylene tube

    Quality Level

    100

    product line

    Supel

    composition

    magnesium sulfate, 4 g
    sodium chloride, 1 g

    packaging

    pk of 50

    technique(s)

    QuEChERS: suitable

    centrifuge tube volume

    15 mL

    application(s)

    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.

    Application

    Supel QuE is used as the unbuffered salt tube for the quick, easy, cheap, effective, rugged, safe (QuEChERS) extraction and analysis of polycyclic aromatic hydrocarbons in foods using gas chromatography coupled to mass spectrometry.

    Legal Information

    Supel is a trademark of Sigma-Aldrich Co. LLC

    Safety Information

    wgk_germany

    WGK 1

    flash_point_f

    Not applicable

    flash_point_c

    Not applicable