液相色谱法和液相色谱要串联质谱法测定荔枝中萘乙酸农药残留量

摘要

采用液相色谱要串联质谱法(LC/MS/MS)对荔枝中萘乙酸农药残留进行检测研究。结果表明：利用乙腈对荔枝(果肉、皮)中萘乙酸的提取，C18固相萃取柱净化，在LC/MS/MS上进行检测，荔枝中萘乙酸的回收率在86.8豫~95.2豫之间，相对标准偏差为0.9豫~3.1豫。该方法操作简便快递、准确可靠、重现性好。%HPLC/MS/MS method was developed to analyze 1-naphthylacetic acid residue in litchi.The results showed that1-naphthylacetic acid was extracted with acetonitrile,cleaned up with C18 SPE,analyzed by HPLC/MS/MS,the average recoverries of 1-naphthylacetic acid in litchi were varied from 86.8%~95.2%with the coefficient of variation of 0.9%~3.1%.The method is simple,rapid,accurate,reliable and has good repeatability.