GB 31658.23-2022 National food safety standards for the determination of nitroimidazole drug residues in animal foods by liquid chromatography-tandem mass spectrometry (English Version)
This document specifies the method for the determination of metronidazole and hydroxymetronidazole in animal foods using seed chromatography-tandem mass spectrometry. This document is applicable to the sample preparation for the detection of menidazole residues in pigs, cattle, sheep and chickens and production bases, and the determination of the residues of liquid-phase added metronidazole, dimethonium and hydroxydimethonium.
GB 31658.23-2022 Referenced Document
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB 31658.23-2022 history
2022GB 31658.23-2022 National food safety standards for the determination of nitroimidazole drug residues in animal foods by liquid chromatography-tandem mass spectrometry