气相色谱法测定敌敌畏在水稻中的残留  

Determination of Dichlorvos Residuein Rice by Gas Chromatography

作　　者：李雄[1] 黄安香 胡德禹[1] 卢平[1] 张钰萍[1] 张侃侃[1] 

机构地区：[1]贵州大学精细化工研究开发中心,绿色农药与农业生物工程国家重点实验室培育基地,教育部绿色农药与生物工程重点实验室,贵州贵阳550025

出　　处：《农药科学与管理》2014年第4期41-44,共4页Pesticide Science and Administration

基　　金：农业部农药登记残留项目(2012P044)

摘　　要：建立了气相色谱（GC-NPD）检测敌敌畏在水稻中残留量的方法.在优化样品前处理方法的基础上,选用DB-35（30m×0.32mm×0.25μm）毛细管色谱柱测定水稻植株、糙米、稻壳、土壤及田水样品中敌敌畏的含量.结果表明,在0.01～1.0mg/kg添加水平范围内,敌敌畏的平均添加回收率为82.2％～106.8％,相对标准偏差（RSD）为0.25％～3.67％,＜5％（n=5）.该方法操作简便,杂质干扰少,灵敏度、准确度高.A method for determining DDVP residue in plant, coarse grain, rice husk, petty soil and water was established based on gas chromatography with nitrogen phosphorus detector （GC-NPD）. After optimizing the sample preparation method, A DB-35 （30m×0.32mm×0.25μm） capillary column was used to determinethe content ofdichlorvos in samples. Results showed that between 0.01-1.0mg/kg spiked levels of dichlorvos, averagerecoveries reached 82.2%-106.8% and the relative standard deviation （RSD） was 0.25%-3.67% which wasless than 5% （n=5）. This method showed simple and rapid characteristic with less impurities interference and high sensitivity and accuracy.

关 键 词：敌敌畏 水稻 气相色谱法 

分 类 号：S481.8[农业科学—农药学]