盐酸衍生-气相色谱法快速测定水果中苯丁锡残留

CUI Zong-yan,WANG Jing,XU Li-ying,LI Xue-min,CAO Yan-zhong,ZHANG Jin-jie,WANG Xian

Chinese Journal of Analysis Laboratory（2018）

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Abstract

建立了水果中苯丁锡残留量测定的气相色谱法,并建立了气相色谱-质谱(EI源)确证方法.样品经二氯甲烷提取,浓盐酸衍生,酸性氧化铝柱固相萃取净化,正己烷-乙酸乙酯(9+1,V/V)洗脱,浓缩后通过气相色谱-电子俘获检测器进行测定.结果表明:方法的定量限为0.050 mg/kg,在0.05 ～ 5.0 mg/kg添加水平范围内,5种水果中苯丁锡的平均回收率在72.4％～98.4％之间,相对标准偏差不超过12％.

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