This standard specifies the gas chromatography-mass spectrometry method for the determination of glyphosate (PMG) and its degradation product aminomethylphosphonic acid (AMPA) residues in vegetable products. This standard is applicable to the detection and verification of glyrrhizinate and its degradation product aminomethylphosphonic acid residues in plant products such as grains (soybeans, wheat), fruits (sugar cane, oranges), etc. Limit of quantification (LOQ) of this standard: 0.05mg/kg.