萘相吸光光度法研究  

Sutdy on naphthalene phase spectropho-tometry

作　　者：万益群[1] 聂基兰[1] 沈玲霞[1] 杨泉生[1] 

机构地区：[1]南昌大学化学系,江西省分析测试研究所

出　　处：《分析试验室》1995年第2期29-31,共3页Chinese Journal of Analysis Laboratory

基　　金：江西省自然科学基金

摘　　要：本文以萘作为固体萃取剂，以镍－丁二酮肟显色体系为例进行实验，探索出一种新的固相吸光光度法——萘相吸光光度法。镍在０～１００μｇ／５０ｍＬ范围内符合比耳定律。方法应用于水样中痕量镍的分析，结果良好。此种新的分析方法将分离富集和显色测定两步相结合。灵敏度高，选择性好，快速简便，是一种很有发展前途的痕量元素分析方法。y selecting naphthalene as the solidextraction agent and the coloring system ofnickel-dimethyiglyoxime as the studied ex-ampl,we have explored a new solid phasespectrophotometry“naphthalene phase spec-trophotometry”,Beers'law is obeyed in therange of O to 100μg Ni/50mL,It has beenapplied to the determination of trace nickelin water samples with satisfaotory results. The new analytical method combines separation and concentration withcoloration anddetermination,Its sensitivity is high ,its se-lectivity is good and it is less time-consum-ing. In the analysis of trace elements,it haswide developing future.

关 键 词：镍 丁二酮肟 萘 萃取剂 比色法 

分 类 号：O657.32[理学—分析化学] O625.151[理学—化学]