55233-U
Supel™ QuE
PSA/ENVI-Carb Tube 2, pk of 50, suitable for EN 15662:2008 per BS
Synonim(y):
QuEChERS
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About This Item
Kod UNSPSC:
41115712
NACRES:
NB.21
Polecane produkty
agency
suitable for BS EN 15662:2008
skład
magnesium sulfate, 900 mg
Supelclean™
ENVI-Carb, 45 mg (Cat. No. 57210-U)
Supelclean™
PSA, 150 mg (Cat. No. 52738-U)
opakowanie
pk of 50
metody
QuEChERS: suitable
pojemność probówki reakcyjnej (do wirowania)
12 mL , Greiner Cat. No. 163270
Zastosowanie
food and beverages
metoda separacji
normal phase
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Opis ogólny
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.
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.
Zastosowanie
Supel™ QuE may be used as a quick, easy, cheap, effective, rugged, safe extraction tube for the dispersive solid phase extraction of pesticide residues in vegetables using acetylcholinesterase (AChE) inhibition assay.[1]
Przydatność
Suitable for food/agricultural samples with higher levels of chlorophyll and carotinoides (e.g., red sweet pepper, spinach, lamb′s lettuce, ruccolla, etc.). Ideal for clean up of 6 mL extract after initial food extraction and phase partitioning.
Informacje prawne
Supel is a trademark of Sigma-Aldrich Co. LLC
Supelclean is a trademark of Sigma-Aldrich Co. LLC
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Kod klasy składowania
11 - Combustible Solids
Klasa zagrożenia wodnego (WGK)
WGK 1
Temperatura zapłonu (°F)
Not applicable
Temperatura zapłonu (°C)
Not applicable
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