摘要
本文提出了一个灵敏度高,选择性好的测定微量锗的萃取浮选吸光光度法。它是基于Ge与o—Cl—PF形成配合物后被环己烷(加醋酸异戊酯)浮选,然后溶于乙醇中,配合物在波长520nm处,其摩尔吸光系数为ε=1.5×10~5L·mol^(-1)·cm^(-1),此法可以直接用于煤样中微量锗的测定。
A very sensitive and selective flotation-spectrophotometric method for the determination of microamounts of Ge based on Ge-o-chlorophenylfluorone system has been investigated. The Ge complex is flotated with cyelohexane (plus iso-amyl acetate) and dissolved in alcohol, The Sandell sensitivity is 0.000483μg/cm^2 at 520nm. The method has been applied to the determination of microamounts of Ge in coal fly ash.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1989年第7期639-641,635,共4页
Chinese Journal of Analytical Chemistry
关键词
锗
氯苯基萤光酮
吸光光度法
Germanium
o-Chlorophenylfluorone
Flotation-spectrophotometric determination
Coal
