摘要
用反相液相色谱法测定水中叶青双及其降解物 2 -氨基 -5 -巯基 -1 ,3 ,4-噻二唑。平均回收率分别为 91 %和94% ;对水样的最低检测浓度分别为 7.1 9nmol/ L和 2 .87nmol/ L;叶青双与 2 -氨基 -5 -巯基 -1 ,3 ,4-噻二唑的分离度为 2 .5。柱效和灵敏度比硅胶柱液相色谱法有明显的提高。
This paper presents a method of reversed-phase high performance liquid chromatography to determine N,N-methylene-bi-(2-amino-5-mercapto-1,3,4-thiodiazole) (MBAMT) and its decomposition product 2-amino-5-mercapto-1,3,4-thiodiazole (AMT). Recoveries of MBAMT and AMT were 91% and 94% respectively. The detectable limits of them in water samples were 7.19 nmol/L for MBAMT and 2.87 nmol/L for AMT. The resolution between the peaks of MBAMT and AMT was 2.5. The column efficiency and the sensitivity of this method were significantly better in comparison with normal phase chromatography.
出处
《色谱》
CAS
CSCD
北大核心
2000年第2期173-174,共2页
Chinese Journal of Chromatography
基金
化工部"七五"国家科技攻关项目!资助 (项目号 75 -3 8-3 6-0 6)
关键词
叶青双
反相液相色谱
农药分析
reversed-phase high performance liquid chromatography
N,N-methylene-bi-(2-amino-5-mercapto-1,3,4-thiodiazole)
2-amino-5-mercapto-1,3,4-thiodiazole
