Anthion detection

Determination of 500 pesticide and related chemical residues in fruits and vegetables - Gas chromatography-mass spectrometry method - Scope 1: This standard specifies the gas chromatography-mass spectrometry method for the determination of 50O pesticide and related chemical residues in apples, citrus, grapes, cabbage, celery, and tomatoes (see Appendix A). This standard is applicable to the determination of 500 pesticides and related chemical residues in apples, oranges, grapes, cabbage, celery, and tomatoes. The detection limit of this standard method is 0.006 3 mg/kg -0.80o 0 mg/kg (see Appendix A). 2 Normative References: The clauses in the following documents become clauses of this standard through reference in this standard. For dated reference documents, all subsequent amendments (excluding corrected content) or revisions are not applicable to this standard. However, parties to agreements based on this standard are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest version applies to this standard. 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. IDT) GB/T 8855 Sampling Methods for Fresh Fruits and Vegetables (GB/T 8855-1988, eqv 1SO 874:1980) 3 Principle Samples are extracted with acetonitrile homogenate, salted out and centrifuged, the supernatant is taken, purified by a solid-phase extraction column, and pesticides and related chemicals are eluted with acetonitrile and toluene (331). After solvent exchange, they are detected by gas chromatography-mass spectrometry

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