离子色谱双柱法测定硝酸中痕量氯离子  

DETERMINATION OF TRACE CHLORIDE IN NITRIC ACID BY ION CHROMATOGRAPHY WITH DOUBLE COLUMNS

作　　者：刘燕[1] 侯倩慧 余季金[1] 赵春华 

机构地区：[1]青岛大学环境科学系,青岛266071 [2]青岛普仁仪器公司,青岛266100

出　　处：《化学分析计量》2006年第2期40-41,共2页Chemical Analysis And Meterage

摘　　要：采用离子色谱双柱串联法分离硝酸样品，以离子色谱电导检测法测定硝酸滤液中的痕量氯离子。氯离子浓度在0．01-0．30mg／L范围内与色谱峰面积成线性关系，对硝酸样品进行测定，氯离子的加标回收率为96．5％-99．0％．测定结果的相对标准偏差为1．84％-2．83％（n=5）。The sample of nitric acid was analyzed by ion chromatography with two columns linked. A conductivity ion chromatography method was used to determine trace chloride. The concentration of chloride was linear with peak area in 0.01-0.30 mg/ L. The recoveries were 96.5%-99.0%, and the relative standard deviation was 1.84% -2.83% （n=5）.

关 键 词：硝酸 离子色谱法 痕量氯离子 双柱 

分 类 号：TQ461[化学工程—制药化工] TM621.8[电气工程—电力系统及自动化]