Összes fotó(1)
Fontos dokumentumok
55176-U
Supel™ QuE QuEChERS tube
PSA/ENVI-Carb™ (EN) Cleanup Tube 2, pack of 100, suitable for EN 15662:2008 per BS
Szinonimák:
QuEChERS
Bejelentkezésa Szervezeti és Szerződéses árazás megtekintéséhez
Összes fotó(1)
About This Item
UNSPSC kód:
41115712
NACRES:
NB.21
Javasolt termékek
product name
Supel™ QuE, PSA/ENVI-Carb™ (EN) Cleanup Tube 2, pack of 100, suitable for EN 15662:2008 per BS
material
polypropylene tube
Minőségi szint
Ügynökség
suitable for BS EN 15662:2008
termékcsalád
Supel™
összetétel
magnesium sulfate, 150 mg
Supelclean™ ENVI-Carb™, 7.5 mg
Supelclean™ PSA, 25 mg
kiszerelés
pack of 100
technika/technikák
QuEChERS: suitable
centrifuga cső térfogata
2 mL
mátrix aktív csoport
PSA phase
carbon phase
alkalmazás(ok)
food and beverages
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Általános leírás
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.
Jogi információk
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
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Tárolási osztály kódja
13 - Non Combustible Solids
WGK
WGK 1
Lobbanási pont (F)
Not applicable
Lobbanási pont (C)
Not applicable
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