Characteristics Of The QuEChERS Method
Originally, QuEChERS was used as a test for multiple pesticide residues in vegetables or fruits. Up to now, its application range is no longer limited to this. At present, QuEChERS has a wide range of applications in agricultural and veterinary drug residues in agricultural products and foods, poisons in the blood, and mycotoxins in food.
Advantages
Compared to other commonly used pre-processing technologies (such as SPE, GPC, etc.), the advantages are:
1) It can detect more than 200 kinds of compounds at the same time, and the recovery rate is better, more than 80%;
2) Correction by the internal standard method, with high precision and accuracy;
3) Simple operation, short detection period, 30-40 pre-weighed samples can be processed in 1h;
4) The solvent is used in a small amount and the price is low. Only acetonitrile is used, the environmental pollution is small, and the risk to the experimenter is small;
5) The use of instruments is simple, mainly using centrifuges and centrifuge tubes.
Disadvantages
In addition to the above advantages, QuEChERS has its own shortcomings. For samples with low water content or high-fat content, the purification effect is not ideal, the extraction efficiency is low, and the purification process has a large loss.
Characteristics Of The QuEChERS Method
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