55464-U
Supel™ QuE QuEChERS tube
PSA/ENVI-Carb Tube 2, pk of 50, suitable for EN 15662:2008 per BS, centrifuge tube volume 15 mL , Shaker Compatible
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product name
Supel™ QuE, PSA/ENVI-Carb Tube 2, pk of 50, suitable for EN 15662:2008 per BS, centrifuge tube volume 15 mL , Shaker Compatible
material
polypropylene tube
Quality Level
Agency
suitable for BS EN 15662:2008
product line
Supel™
composition
Magnesium Sulfate, 900 mg
Supelclean™ ENVI-Carb, 45 mg (Cat. No. 57210-U)
Supelclean™ PSA, 150 mg (Cat. No. 52738-U)
packaging
pk of 50
technique(s)
QuEChERS: suitable
centrifuge tube volume
15 mL , Shaker Compatible
matrix active group
PSA phase
carbon phase
application(s)
food and beverages
separation technique
reversed phase
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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.
Compatibility
Suitability
Legal Information
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
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Articles
Reversed-phase interaction will retain most molecules with hydrophobic character; it is very useful for extracting analytes that are very diverse in structure within the same sample.
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