摘要
研究了在稀H2SO4介质中，痕量钴催化过氧化氢氧化偶氮胂M褪色反应的动力学条件，建立了催化动力学光度法测定钴的新方法．方法的线性范围为0-0．08mg/L，检测限为1．73×10^-9g／L．在用于测定维生素％中痕量钴时，结果满意．
In the medium of dilute H2SO4, the fading reaction of Arsenazo M oxidized by H2O2, which can be catalyzed by Co（Ⅱ）, has been studied . A new method for the catalytic spectrophotometric determination of trace cobalt has been developed. The lineer range is 0-0.08 mg/L and the detection limit is 1.73×10^-9 g/L.The proposed method has been used to determine trace cobalt in vilamin B12 with satisfactory resuits.
出处
《广东工业大学学报》
CAS
2006年第1期64-66,共3页
Journal of Guangdong University of Technology
关键词
钴
过氧化氢
偶氮胂M
催化光度法
cobalt
hydrogen peroxide
Arsenazo M
catalytic spectrophotomerty
