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.
出处
《分析试验室》
CAS
CSCD
北大核心
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
关键词
镍
丁二酮肟
萘
萃取剂
比色法
Nickel
dimethylglyox-ime
naphthalene phase spectrophotometry
