roq-quechers-kit

roQ QuEChERS Kits

roQ QuEChERS kits make sample preparation easy. roQ QuEChERS kits eliminate common problems seen with other QuEChERS kits by incorporating features such as trays to hold centrifuge tubes, easy pour salt packets, and stand-alone centrifuge tubes making the removal of unwanted interferences such as organic acids, lipids, pigments, sugars, and more.

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Overview

A Simple 2-Step Method

Step 1: Extraction

Pesticides and analytes of interest must first be extracted from the sample. This process relies on the combination of organic solvent and various salts to partition the analytes from samples into an organic layer (typically acetonitrile).

Blend fruits or vegetables to be analyzed.

Weigh blended sample.

Add salts and acetonitrile.

Shake tube for 1 minute.

Centrifuge tube for 5 minutes.

Step 2: Dispersive SPE (dSPE)

An aliquot of the organic layer from the extraction step is subjected to further clean up by dispersive SPE. This step selectively removes unwanted interferences such as lipids and pigments, using the QuEChERS dispersive kit.

Add supernatant from extraction procedure into a roQ dSPE tube.

Shake dSPE tube for 30 seconds.

Centrifuge dSPE tube for 5 minutes.

Analyze supernatant by GC or HPLC.

Don't settle for any QuEChERS kit…roQ exemplifies Quick, Easy, Cheap, Effective, Rugged and Safe for multiresidue pesticide clean-up in conjunction with AOAC 2007.01 and EN 15662 Methods.