OBJECTIVE To carry out screening of pesticide residues in Panax notoginseng for the pesticide residues commonly used in Panax notoginseng,understand the pesticide residues situation and carry out the related risk assenssment study.METHODS GC-MS/MS and LC-MS/MS methods were used to establish detection methods for commonly used pesticides in Panax notoginseng,as well as those regulated by laws and regulations;the methods were used to conduct a comprehensive screening and risk assessment of the collected Panax notoginseng samples;and the indexes of the transformed pesticides were confirmed in accordance with the pesticide residue limits of Panax notoginseng in the GB 2763 standard.RESULTS In this study,the residue determination methods for about 40 commonly used pesticides and pesticides regulated by regulations in Panax notoginseng were successfully established,and the corre-sponding limits were set according to the GB 2763 standard.Eight pesticides including tebuconazole,phenyl ether metronidazole and carbendazim were finally recognized as transformed pesticide indicators.CONCLUSION The pesticide residue detection method for Panax notoginseng established in this study is characterized by simple and rapid operation,high specificity and high sensitivity,and the related risk assessment and limit setting provide technical support for the improvement of the quality standard of Panax notoginseng.
Panax notoginsengpesticide residuedetection methodrisk assessmenttransformation of limit standards
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