Merck KGaA, Darmstadt, Germany

Supel QuE (QuEChERS) Tubes

Dispersive SPE (dSPE), often referred to as the 'QuEChERS' method, is an emerging sample prep technique that is becoming increasingly popular in the area of multi-residue pesticide analysis in food and agricultural products. In dSPE, food/agricultural samples are first extracted with aqueous miscible solvents in the presence of high amounts of salt and/or buffering agents followed by SPE clean up. Unlike traditional methods that use SPE tubes, in dSPE clean up is facilitated by mixing bulk amounts of SPE with the extract. Supelco now carries a line of centrifuge tubes containing pre-determined amounts of salts and SPE sorbents to support the most common dispersive SPE methods used today.

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