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20 μL,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.
Abstract
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 20 µL.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 0.999 87,0.999 94,and 0.999 88 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.
基金项目
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)()
NETL
NSTL
万方数据