宁夏大学学报（自然科学版）Issue(2)：157-161,5.
流动注射-胶束增溶分光光度法测定饮用水中痕量钴
Study on Measure of Trace Cobalt (Ⅱ)in Drinking Water through Flow Injection Micelle-solubilized Spectrophotometry
摘要
Abstract
Under the condition of alkalinity (pH = 9 ),the existence of Hexadecylpyridinium bromide (CPB)can make the Salicyl fluone chromogenic react with Co (Ⅱ)and create ternary complexes,the maximum absorption wavelength of which is on about 540 nm.Accordingly,the article measures the trace amount Co(Ⅱ)in drinking water through Flow Injection Micelle-solubilized Spectrophotometry,studies SAF concentration,CPB concentration and buffered solution’s effect on optical density D ,and optimizes each parameter of the apparatus.It turns out that under the best experimental environment,this method is with good selectivity and antijamming capability.The linearity range is 3-40 μg/L,and the linear equation is D =0.006 c +0.369 3,correlation coefficient r=0.999 5.The degree of precision of 1 1 times of 15 μg/L Co(Ⅱ)Standard solution sample is 0.95%.The sample frequency of about 60 samples/h,the detection limit is 0.1 μg/L,and the recovery is 97.0%-104.3%.关键词
流动注射分析/胶束增溶分光光度法/钴(Ⅱ)Key words
flow injection analysis/micelle-solubilized spectrophotometry/Cobalt分类
化学化工引用本文复制引用
陈哲,李华..流动注射-胶束增溶分光光度法测定饮用水中痕量钴[J].宁夏大学学报（自然科学版）,2014,(2):157-161,5.基金项目
四川省教育厅基金资助项目(08zd1101) （08zd1101）
四川省科技支撑计划基金资助项目(2012GZX0083) （2012GZX0083）
