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Position: Home > Articles > Determination of Lactofen by High Performance Capillary Electrophoresis Agrochemicals 2010,49 (9) 43-44

高效毛细管电泳法测定乳氟禾草灵的含量

作  者:
阎峰;关瑾;陈星;石爽;傅业荣;刘晓霞
单  位:
沈阳化工大学;东北大学
关键词:
毛细管电泳法;乳氟禾草灵;含量测定
摘  要:
建立了高效毛细管电泳法测定乳氟禾草灵的含量。使用有效长度为42cm、内径为50μm的毛细管,在背景电解质为50mmol/L硼砂-150mmol/L磷酸二氢钠(pH值9.5)、检测波长为281nm、分离电压为15kV的优化条件下,分析时间小于6min。乳氟禾草灵质量浓度在10~240mg/L内线性关系良好,相关系数为0.9997;方法的检测限(S/N为3)和定量限(S/N为10)分别为0.8、2.0mg/L;加标回收率为98.2%~99.0%,相对标准偏差为0.59%~2.6%。
译  名:
Determination of Lactofen by High Performance Capillary Electrophoresis
作  者:
YAN Feng1,GUAN Jin1,CHEN Xing1,SHI Shuang1,FU Ye-rong1,LIU Xiao-xia2 (1.Shenyang University of Chemical Technology,Shenyang 110142,China; 2.Northeastern University,Shenyang 110004,China)
关键词:
HPCE; lactofen; analysis
摘  要:
A high performance capillary electrophoresis (HPCE) method has been established for the analysis of lactofen. The separation was carried out on a fused-silica uncoated capillary column(42 cm×50 μm i.d.). The analysis was completed in less than 6 min in 50 mmol/L borox-150 mmol/L sodium dihydrogen phosphate buffer(pH 9.5) at 15 kV of separation voltage and 281 nm of detection wavelength. A good linearity was obtained for lactofen in the range from 10 to 240 mg/L with correlation coefficient was 0.9997. The limits of detection(LOD) and quantification (LOQ) were 0.8 mg/L(S/N 3) and 2.0 mg/L(S/N 10),respectively. The average recoveries were in the range of 98.2-99.0%,and relative standard deviations(RSDs) were between 0.59 and 2.6%.

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