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Supelco

Supel QuE QuEChERS tube

Acetate Tube, pk of 50, AOAC® 2007.01

Synonym(s):

QuEChERS

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About This Item

UNSPSC Code:
41115712
NACRES:
NB.21

product name

Supel QuE, Acetate Tube, pk of 50, AOAC® 2007.01

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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General description

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.

Suitability

Suitable for extracting 10-15 g food/agricultural sample. The high level of salts (e.g. magnesium sulfate) is to induce phase separation between the acetonitrile and aqueous sample layer.

Legal Information

AOAC is a registered trademark of AOAC International
Supel is a trademark of Sigma-Aldrich Co. LLC

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Articles

Extraction of Permethrin Pesticides from Spinach Using QuEChERS Methodology with Automated Shaking

Determination of Neonicotinoids in Honey using a Chromolith RP-18 HPLC column and UV Detection

Protocols

Supel QuE Z-Sep+ was successfully demonstrated for cleanup of beef kidney matrix, providing reduced background and less interference in the GC-MS analysis of the target pesticides

Supelco's Z-Sep+ sorbent effectively removes fat and pigment interferences from avocado, with good pesticide recoveries; it removes more matrix than traditional PSA/C18 sorbent, and produces a lower background for GC-MS analysis.

A highly selective and sensitive analytical method was developed for chloramphenicol using a QuEChERS type sample preparation approach and LC-MS/MS detection.

Honey bee exposure to neonicotinoid pesticides could contribute to colony collapse disorder (CCD). This application utilizes QuEChERS Extraction and LC-MS Analysis.

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