Research on the Revision of Maximum Residue Limits for Pesticides and the Establishment of Standard Residue Limits for Pesticides in Lilii Bulbus
OBJECTIVE To establish the limit standard of common pesticides in Lilii Bulbus,based on the"GB2763-2021 National Standard for Food Safety Maximum Residue Limit of Pesticides in food"and the multiple residue detection method of banned pesticides in Chinese medicinal materials and Chinese herbal decoction pieces(plants)in Chinese Pharmacopoeia.METHODS In accordance with the conversion tenet of the maximum residue limit(MRL)of pesticides in food established by the research group under the National Standard for Food Safety GB2763-2021,the converted types of agricultural residue limit of Lilii Bulbus were ascertained.The risk assessment of the MRL value was accomplished,and the detection methodologies for the agricultural residue of Lilii Bulbus were established to appraise the residue status of 50 batches of samples.RESULTS The QuEChERS procedure was adopted for extracting Lilii Bulbus,the gas chromatography-tandem mass spectrometry(GC-MS/MS)approach was utilized to determine six catego-ries of pesticides,and the liquid chromatography-mass spectrometry(LC-MS/MS)method was implemented to determine nine sorts of pesticide residues.Meanwhile,the current prohibited pesticide multi-residue determination approach of the pharmacopoeia was taken into account.Comprehensive risk assessment and actual sample residue data were leveraged to establish the limits for ten kinds of pesti-cide residues in Lilii Bulbus.CONCLUSION The established method is precise and efficient and can be exploited for the determina-tion of the residues of ten commonly utilized pesticides in Lilii Bulbus.The limited conversion principle of traditional Chinese medicine variety limit standard is applied to effectuate the conversion of ten pesticides of Lilii Bulbusin GB2763-2021,providing support for the safety assessment of Lilii Bulbus.
NETL
NSTL
万方数据
