烟嘧磺隆、莠去津、2甲4氯异辛酯及其代谢物在玉米和土壤中的残留分析  

Residual Analysis of Nicosulfuron, Atrazine, MCPA-isooctyl and Its Metabolite in Corn and Soil

作　　者：王博[1] 侯志广[1] 刘良月 郭鸿莹 刘松健 逯忠斌[1] Wang Bo;Hou Zhi-guang;Liu Liang-yue;Guo Hong-ying;Liu Song-jian;Lu Zhong-bin＊(College of Resource and Environmental Science,Jilin Agricultural University,Changchun 130118,China)

机构地区：[1]吉林农业大学资源环境学院,长春130118

出　　处：《现代农药》2018年第6期40-44,共5页MODERN AGROCHEMICALS

基　　金：农药在北方玉米种植体系中流失区域差异与施用限量标准国家重点研发计划(2016YFD0200203)

摘　　要：建立高效液相色谱-质谱/质谱法和气相色谱质谱法,分别检测玉米植株、玉米和土壤中烟嘧磺隆、莠去津、2甲4氯异辛酯及其代谢物2甲4氯的最终残留。样品中烟嘧磺隆、莠去津、2甲4氯经乙腈(含0.1%乙酸)提取,PSA净化,高效液相色谱-质谱/质谱仪测定;2甲4氯异辛酯经乙腈(含0.1%乙酸)提取,弗罗里硅土柱层析净化,气相色谱质谱联用仪测定。方法的平均添加回收率为71.4%～108.2%,相对标准偏差为0.8%～19.1%;烟嘧磺隆、莠去津、2甲4氯、2甲4氯异辛酯的最低检测质量浓度为0.01 mg/L。检测方法简单、高效,准确度和灵敏度能够满足残留检测要求。A residual analysis method was developed for nicosulfuron, atrazine, MCPA, MCPA-isooctyl in corn plant, corn and soil by HPLC-MS and GC-MS. The residues of nicosulfuron, atrazine, MCPA in corn plant, corn and soil were extracted by acetonitrile （containing acetic acid 0.1%）, purified by PSA, then detected by HPLC-MS. The residue of MCPA-isooctyl was extracted by acetonitrile （containing acetic acid 0.1%）, purified by Florisil column and detected by GC-MS. The average recoveries of nicosulfuron, atrazine, MCPA, MCPA-isooctyl were 71.4%-108.2%, the relative standard deviations were 0.8%-19.1%. The limits of quantitation were all 0.01 mg/L. The methods were simple and efficient, the accuracy and the sensitivity of the method met the requirements of residue detection.

关 键 词：烟嘧磺隆 莠去津 2甲4氯 2甲4氯异辛酯 玉米 残留分析 

分 类 号：TQ450.263[化学工程—农药化工]