苹果、香蕉和柑橘中腐霉利等4种防腐保鲜剂残留分析方法  

Residue Analysis of Procymidone,Imazalil,Iprodione and Prochloraz in Apple,Banana and Citrus

作　　者：徐国锋[1] 聂继云[1] 李静[1] 李海飞[1] 王孝娣[1] 毋永龙[1] 

机构地区：[1]中国农业科学院果树研究所,辽宁兴城125100

出　　处：《农药学学报》2009年第3期351-356,共6页Chinese Journal of Pesticide Science

基　　金：农业部行业标准制定项目"水果防腐保鲜剂允许量及其测定"(农财发[2007]40号)

摘　　要：采用乙腈提取、分散SPE净化的前处理方法以及气相色谱电子捕获检测器,测定了苹果、柑橘和香蕉中腐霉利、抑霉唑、异菌脲和咪鲜胺4种防腐保鲜剂的残留量,利用基质匹配标准校正方法补偿基质效应。结果表明,腐霉利、抑霉唑和咪鲜胺在3个添加水平(0.02、0.05和0.10mg/kg)下的回收率为85.1%～108.4%,相对标准偏差为0.5%～7.9%;异菌脲在3个添加水平(0.05、0.10和0.20mg/kg)下的回收率为82.9%～98.8%,相对标准偏差为3.6%～8.6%。方法的检出限(LOD)在0.001～0.008mg/kg之间,定量限(LOQ)在0.003～0.03mg/kg之间。The GC-ECD method of determination of procymidone,imazalil,iprodione and prochloraz in apple,citrus and banana by acetonitrile extracting,dispersed SPE cleanup and matrix-matched standards quantitation procedure was developed.At 3 fortified levels （0.02,0.05 and 0.10 mg/kg）,the recoveries of procymidone,imazalil,and prochloraz were in the range of 85.1%～108.4% and the relative standard deviations were in the range of 0.5%～7.9%.The recoveries of iprodione at 3 fortified levels （0.05,0.10 and 0.20 mg/kg） were 82.9%～98.8% with relative standard deviations of 3.6%～8.6%.The limits of detection （LOD） were in the range of 0.001～0.008 mg/kg,and the limits of quantification（LOQ） in the range of 0.003～0.03 mg/kg.

关 键 词：防腐保鲜剂 残留 分散SPE 气相色谱 基质匹配标准校正 

分 类 号：O657.71[理学—分析化学]