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目的制定川白芷药材中有机磷类农药最大残留的限量标准(MRLs)。方法采用乙酸乙酯冰浴超声提取,SPE活性炭固相萃取柱净化除杂质,GC-NPD法检测药材中有机磷类农药的残留量。结果建议将川白芷药材中有机磷类农药的最大残留限量规定为:敌敌畏0.2μg.g-1、乙酰甲胺磷0.5μg.g-1、乐果0.2μg.g-1、马拉硫磷0.5μg.g-1、杀扑磷2.0μg.g-1、二嗪农0.2μg.g-1、乙硫磷0.5μg.g-1、氧化乐果0.05μg.g-1,甲胺磷、甲基对硫磷、久效磷、对硫磷不得检出。结论有机磷农药残留的检测可为生产绿色中药和保障用药安全提供科学依据。
OBJECTIVE To develop limitative criteria (MRLs) for maximum residue of organophosphate pesticides in Chuan Baizhi herbs. Methods Ultrasonic extraction was performed on an ice-bath with ethyl acetate, and the impurities were removed by SPE activated carbon solid-phase extraction column. The residues of organophosphate pesticides in the samples were determined by GC-NPD. The results suggest that the maximum residue limits of organophosphorus pesticides in Radix Angelicae Sinensis is 0.2 μg.g-1 for dichlorvos, 0.5 μg.g-1 for acephate, 0.2 μg.g-1 for dimethoate, 0.5 μg.g-1 of diazoxide, 0.05 μg.g-1 of omethoate, 0.05 mg.g-1 of methamidophos, , Methyl parathion, monocrotophos, parathion may not be detected. Conclusion The detection of organophosphorus pesticide residues can provide a scientific basis for the production of green Chinese medicine and the protection of drug safety.