第 48 卷第 4 期Vol. 48 No. 4
2018 年 8 月Aug 2018

所属栏目:分析与测试

丙硫唑高效液相色谱分析
廖丽萍1,2,3,陈 颖1,2,3,刘小锋1,2,3 (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;3. 湖南化工研究院有限公司 湖南加法检测有限公司,湖南 长沙 410014)
摘 要:建立丙硫唑的高效液相色谱分析方法。样品用冰醋酸溶解,采用 Agilent TC-C18 反相柱为色谱柱,v(甲醇) ∶ v(水)=70 ∶ 30为流动相,PDA检测器在295 nm 对丙硫唑进行高效液相色谱分离和测定。方法在32~320 μg·mL-1的浓度范围内线性关系良好,其线性回归方程:y=23 584x-517.84,相关系数r=0.999 9,变异系数为 0.2%,回收率为 99.0%~100.4%。该方法简单可靠,精确度和准确度符合定量分析要求,可用于丙硫唑定量分析。
关键词:高效液相色谱;丙硫唑;分析
中图分类号:O657  文献标识码:A  文章编号:1009-9212(2018)04-0070-03
Determination of Methyl 5-(propylthio)-1H-benzo[d]imidazol-2-ylcarbamate by HPLC
LIAO Li-ping1,2,3,CHEN Ying1,2,3,LIU Xiao-feng1,2,3 (1. National Engineering Research Center for Agrochemicals, Hunan Research Institute of Chemical Industry, Changsha 410014, China; 2. Hunan Province Key Laboratory for Agrochemicals, Changsha 410014, China; 3.HUNAN J & F TEST Co.,Ltd., Changsha 410014,China)
Abstract:To establish a high performance liquid chromatography method for methyl 5-(propylthio)-1H-benzo[d]imidazol-2-ylcarbamate, the samples in glacial acetic acid was separated using reverse phase column Agilent TC-C18 as chromatographic column while mobile phase was used as a methanol to water volume ratio of 70:30. PDA detector was set to separate and read the signal of compound at 295 nm.This method detected compound's signal nicely and regressed to linear model between 32~320 μg·mL-1 of concentration. The regressed linear function was y=23 584x-517.84 and the regression coefficiency r was of 0.999 9, coefficient of variant is of 0.2%, recovery percentage was of 99.0% to 100.4%.The method reported here was a simple, stable and accurate one that meet the requirments for quantitative analysis of methyl 5-(propylthio)-1H-benzo[d]imidazol-2-ylcarbamate.
Key words:methyl 5-(propylthio)-1H-benzo[d]imidazol-2-ylcarbamate;analysis
作者简介:廖丽萍(1979-),女,湖南常宁人,研究方向:农药、化工产品及农药残留的分析。
收稿日期:2018-05-30