流动注射在线离子交换预富集火焰原子吸收光谱法测定水样中微量锰  

Determination of manganese in water samples with on-line flow injection-cation exchange preconcentration and flame atomic absorption spectrometry

作　　者：杨明[1] 杨小秋[1] 韩祺[1] 黄芬[1] 邱海鸥[1] 汤志勇[1] 

机构地区：[1]中国地质大学材料科学与化学工程学院,武汉430074

出　　处：《分析试验室》2004年第9期9-12,共4页Chinese Journal of Analysis Laboratory

基　　金：科技部十五计划子项目(2001BA210A06)

摘　　要：提出了以732强酸型阳离子树脂作填充材料,流动注射在线离子交换预富集火焰原子吸收光谱法测定水样中微量锰的分析方法。优化了各项化学条件和流路参数等,考察了共存离子的干扰。富集倍数可达24倍,分析速度为15～20样/h,检出限为2.0ng/mL,相对标准偏差为2.8%(n=15)。对雨水加标回收,回收率为97%～103%。A new flow injection method was presented for the determination of Mn in water with 732 cation exchange resin and FAAS. The working parameters were discussed and optimized. Preconcentration rate was 24 and determination rate was 15～(20 sample/h). The detection limit was 2.0 ng/mL and RSD(n=15) was 2.8%. The recovery was 97%～103%.

关 键 词：流动注射 离子交换预富集 火焰原子吸收光谱法 锰 

分 类 号：O657.32[理学—分析化学]