Animal edible tissue testing

This section specifies the liquid chromatography method for the determination of the residual metabolites of 4-formylaminoantipyrine, 4-methylaminoantipyrine, and 4-aminoantipyrine in beef and pig muscles, using liquid chromatography-ultraviolet detection and liquid chromatography-tandem mass spectrometry. This section is applicable to the determination of residues of 4-formylaminoantipyrine, 4-methylaminoantipyrine, and 4-aminoantipyrine in beef and pig muscles. The detection limit of the method in this section is 12 5 pg/kg, 15.0 ug/kg for 4-aminoantipyrine, and 20 for 4-methylaminoantipyrine 0 pg/kg. 2 Normative References: The clauses in the following documents become the clauses of this section through reference in this section. For dated reference documents, all subsequent amendments (excluding erroneous content) or revisions do not apply to this section. However, parties to agreements based on this section are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest version applies to this section. GB/T 6379.1 Accuracy (Accuracy and Precision) of Measurement Methods and Results Part 1: General Principles and Definitions (GB/T 6379.1-2004, ISO 5725-1:1994, 1DT) GB/T 6379.2 Accuracy (Accuracy and Precision) of Measurement Methods and Results Part 2: Basic Methods for Determining the Repeatability and Reproducibility of Standard Measurement Methods (GB/T 6379.2-2004, ISO 5725-2; 1994, 1DT) GB/T 6682, Specification and Test Methods for Analytical Laboratory Water (GB/T 6682-1992, neq ISO 36961987)

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