摘要
建立测定果蔬中己唑醇残留量的气相色谱质谱法。样品用乙腈提取,GCB/NH2固相萃取柱净化,石油醚:丙酮(15:85,V/V)洗脱,DB-5 ms色谱柱分离。己唑醇的检出限为0.02mg/kg,方法的精密度和回收率分别为3.03%～9.34%和92.24%～106.13%。该方法线性关系好,重复性好,准确度高,可为水果蔬菜中己唑醇残留的监测建立确证方法。
A gas chromatography-tandem mass spectrometric （GC-MS/MS） method was established for the determination of hexaconazole in fruits and vegetables. Samples were extracted with acetonitrile, and cleaned up on a GCB/NH2 SPE column using a mixture of petroleum ether and acetone at ratio of 15：85 （V/V）. The chromatographic separation was carded out on a DB-5 ms column. The limit of detection for hexaconazole was 0.02 mg/kg. The precision RSDs and spike recoveries of the method were separately 3.03%-9.34% and 92.24%-106.13%. The method was highly linear, repeatable and accurate and thus could offer a suitable method for the accurate determination of hexaconazole residue in fruits and vegetables.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2012年第4期227-229,共3页
Food Science
基金
国家认监委标准修订项目(2009B155)
关键词
气相色谱串联质谱
果蔬
己唑醇
gas chromatography-tandem mass spoctrometry
fruits and vegetables
hexaconazole
作者简介
付晓芳（1980-），女，工程师，硕士，研究方向为食品安全检测。E-mail：fuxf@hbciq．gov．ca
