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://Overview of QuEChERS Technology

Overview of QuEChERS Technology

QuEChERS, composed with Quick, Easy, Cheap, Effective, Rugged and Safe, is a latest developed sample pretreatment technology of detecting agricultural products, which was developed by one professor from the United States Department of Agriculture in 2003.

Principle

Its principle is similar to that of High-Performance Liquid Chromatography (HPLC) and Solid Phase Extraction (SPE). Both of them utilize the interaction between adsorbents and impurities of the matrix adsorbing impurities to remove impurities and realize purification.

General Steps

The steps of QuEChERS technology can be simply summarized as follows.

1. Crush samples
2. Extract and separate of acetonitrile of the single solvent
3. Add MgSO4 and other salts to remove water
4. Add ethylenediamine-N-propyl silane (PSA) or other adsorbents to remove impurities
5. Detect the supernatant

Advantages

The QuEChERS also has the following advantages. (three of the all are listed only)

1.High Recovery Rate
The recovery rate of a large number of polar and volatile pesticides is more than 85%;
2.High Accuracy and Precision
This can be modified by the internal standard method.
3.A Wide Range of Analyzable Pesticides
Including polar and non-polar pesticides, experts can apply this technology to acquire a higher recovery rate.

China QuEChERS Extraction Kit Pouch Format AOAC-EN
QuEChERS D-SPE Kits
C18 QuEChERS Dispersive Absorbent for D-SPE Use
2019-03-01T02:03:37+00:00March 1st, 2019|