QuEChERS is an efficient and stable sample of pre-processing technology. Its name is derived from the initials of English words describing the characteristics of the method, namely: Quick (Quick), Easy (Easy), Cheap (Economic), Effective (Efficient), Rugged (Sturdy and durable), Safe (environmental protection).
In 2003, this method was first proposed by the US Department of Agriculture, Anastassisdes, and Lehotay. The method uses acetonitrile, a water-soluble organic solvent, as the extractant, and through the combination of extraction, salting-out phase separation, and dehydration purification, high-efficiency extraction of pesticide residues in high water content fruit and vegetable samples is achieved.
In order to improve the wide applicability of the QuEChERS method to the detection of multiple samples and pesticide residues of various chemical properties, the 2003 version of QuEChERS technology (also known as Original QuEChERS) was carried out in the American Standard (AOAC2007.01) and European Standard (EN 15662).
Improved to ensure effective extraction of pH-sensitive pesticide residues. At present, QuEChERS sample preparation technology has become the standard method for pesticide residue detection in fruit and vegetable samples in the United States and the European Union and has been widely used.
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