Analysis of 33 Prohibited Pesticide Residues in Asteris Radix Et Rhizoma
Objective:To evaluate the residues of 33 prohibited pesticides in Asteris radix et rhizoma.Methods:Extracting samples with acetonitrile and cleaning up with solid phase extraction,high performance liquid chromatography-tandem mass spectrometry and gas chromatography-tandem mass spectrometry were used to detect the residues of 33 prohibited pesticides in Atractylodes macrocephala rhizoma.Results:The calibration curves of 33 forbidden pesticide residues showed good linearities with correlation coefficients above 0.995.The measured recoveries ranged from 70.2％to 106.9％.The positive detection rate of phorate in the 20 batches of Asteris radix et rhizoma was 100％.Conclusion:The method is accurate and highly sensitive for the confirmation of 33 prohibited pesticide residue.Phorate residues in Asteris radix et rhizoma must be concerned.
asteris radix et rhizomaprohibited pesticides residuesphorate
万方数据
维普
