Documents
55234-U
Supel™ QuE
Acetate Tube, pk of 50, AOAC® 2007.01
Recommended Products
material
polypropylene tube
Quality Level
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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Related Categories
1 of 4
This Item | 55288-U | 55289-U | 55287-U |
|---|---|---|---|
| agency AOAC® 2007.01 | agency AOAC® 2007.01 | agency AOAC® 2007.01 | agency AOAC® 2007.01 |
| product line Supel™ | product line Supel™ | product line - | product line - |
| composition magnesium sulfate, 6 g | composition Discovery® DSC-18, 50 mg , magnesium sulfate, 150 mg , Supelclean PSA, 50 mg | composition Discovery® DSC-18, 50 mg (;), ENVI-Carb, 50 mg , magnesium sulfate, 150 mg , Supelclean PSA, 50 mg | composition magnesium sulfate, 150 mg , Supelclean PSA, 50 mg |
| packaging pk of 50 | packaging pack of 100 | packaging pack of 100 | packaging pack of 100 |
| technique(s) QuEChERS: suitable | technique(s) QuEChERS: suitable | technique(s) QuEChERS: suitable | technique(s) QuEChERS: suitable |
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
Storage Class Code
12 - Non Combustible Liquids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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Retention occurs through polar interaction between the sorbent and analytes. Typical sample matrices that can be employed in normal-phase SPE include hydrocarbon or fatty oils diluted in a solvent like hexane, isooctane, chlorinated solvent, THF, diethyl ether, or ethyl acetate.
Related Content
Gas chromatography is a common analytic technique used to separate and analyze volatile compounds in the gas phase. GC is applied in many industries for quality control, and to identify and/or quantify compounds in a mixture.
QuEChERS is a ‘Quick, Easy, Cheap, Effective, Rugged and Safe’ sample cleanup method used to prepare food and agricultural samples for pesticides analysis. QuEChERS is based on the Solid Phase Extraction (SPE) technique of sample preparation.
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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