55234-U
Supel™ QuE QuEChERS tube
Acetate Tube, pk of 50, AOAC® 2007.01
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product name
Supel™ QuE, Acetate Tube, pk of 50, AOAC® 2007.01
material
polypropylene tube
agency
AOAC® 2007.01
product line
Supel™
composition
magnesium sulfate, 6 g
sodium acetate, 1.5 g (Cat. No. 58750)
packaging
pk of 50
technique(s)
QuEChERS: suitable
centrifuge tube volume
15 mL
application(s)
food and beverages
separation technique
ion exchange
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General description
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
Legal Information
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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QuEChERS method simplifies sample cleanup for pesticides analysis in food and agricultural samples.
Chromatograms
application for SPE, suitable for GCsuitable for GC, application for SPEOur team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
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