甲基化处理气相色谱-质谱法同时检测大米中12种酸性除草剂

被引：20

作者：

赵守成 ^{[1
]}

董振霖 ^{[1
]}

卫锋 ^{[1
]}

蒋景阳 ^{[2
]}

姜文凤 ^{[2
]}

谢波 ^{[2
]}

机构：

[1] 辽宁出入境检验检疫局技术中心

[2] 大连理工大学

来源：

质谱学报 | 2005年 / 04期

关键词：

酸性除草剂; 衍生化; 气相色谱-质谱(GC/MS); 凝胶渗透色谱(GPC);

D O I：

暂无

中图分类号：

O657.63 [质谱分析];

学科分类号：

070302 ; 081704 ;

摘要：

实验采用丙酮酸性水溶液(150∶20,体积比)提取试样中农药残留物,提取液用乙酸乙酯液液分配、凝胶渗透色谱仪(GPC)净化后,用重氮甲烷乙醚溶液衍生化,用气相色谱-质谱(GC/MS)选择离子监测模式(SIM)内标法(IS)测定,分离色谱柱为DB-5MS。10种农药的回收率≥80%;相对标准偏差≤10%;最低检测限0.01～0.05 mg/kg。

引用

页码：206 / 210

页数：5

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