高效液相色谱同时测定灭多威生产废水中的二甲基脲、灭多威肟和灭多威  

Determination of Dimethylurea, Methomyl Oxime and Methomyl in Wastewater by High PerformanceLiquid Chromatography

作　　者：秦岳军 张燕 马林 欧晓明 陈明 李辉 卜嘉琪 黄志鹏 QIN Yue-jun;ZHANG Yan;MA Lin;OU Xiao-ming;CHEN Ming;LI Hui;BU Jia-qi;HUANG Zhipeng(National Enigineering Research Center for Agrochemicals,Hunan Research Institute of Chemical Industry Co.,Ltd.,Changsha 410014,China;Agrochemical Key Laboratory of Hunan Province,Changsha 410014,China)

机构地区：[1]湖南化工研究院有限公司国家农药创制工程技术研究中心,湖南长沙410014 [2]农用化学品湖南省重点实验室,湖南长沙410014

出　　处：《精细化工中间体》2024年第3期76-79,共4页Fine Chemical Intermediates

基　　金：芙蓉计划省企业科技创新创业团队项目(湖南海利新材料科技创新创业团队)。

摘　　要：采用高效液相色谱法,C18柱及二极检测器条件下,以V(甲醇)∶V(水[(0.1%醋酸铵)]=25∶75为流动相,检测波长210 nm,定量环20μL,流速1.0 mL/min,柱温40℃为色谱条件,同时测定灭多威生产废水中的二甲基脲、灭多威肟和灭多威。结果表明二甲基脲、灭多威肟、灭多威相关线性系数分别为0.999 87、0.999 94、0.999 88,平均添加回收率分别为99.98%、99.90%、100.01%,其标准偏差为0.12、0.16、0.092,相对标准偏差为0.49%、0.25%、0.36%。方法线性范围良好、灵敏快捷、准确可靠,适用于同时测定废水中二甲脲、灭多威肟和灭多威的含量。High performance liquid chromatography was used with a C18 column and a bipolar detector,and methanol and water(0.1%ammonium acetate contained)was used as the mobile phase(volume ratio of methanol to water was 25∶75),with an absorption wavelength of 210 nm and a quantitative ring of 20μL.There was a simultaneous determination of dimethyl urea,methomyl oxime,and methomyl in wastewater under chromatographic conditions with a flow rate of 1.0 mL/min and column temperature of 40℃.The results showed that the linear coefficients of dimethylurea,methomyl oxime,and methomyl were 0.99987,0.99994,and 0.99988 respectively.The average addition recovery rates were 99.98%,99.90%,and 100.01%,with standard deviations of 0.12,0.16,and 0.092,and relative standard deviations of 0.49%,0.25%,and 0.36%.This method has the advantages of good linear range,high sensitivity,high speed,accuracy,and reliability,and is suitable for the simultaneous determination of dimethyl urea,methomyl oxime,and methomyl in wastewater.

关 键 词：二甲基脲 灭多威肟 灭多威 高效液相色谱 

分 类 号：O657.72[理学—分析化学] TQ460.9[理学—化学]