摘要
本文提出了在Ｃｏ（Ⅱ）的催化下，草酸铁钾的光解反应产物Ｆｅ（Ⅱ）与邻菲罗啉生成的桔红色络合物的吸光度在一定的实验条件下与试剂Ｃｏ（Ⅱ）的含量０—２．８μｇ／ｍＬ呈良好的线性关系，从而建立了一种光化学－动力学测定钴的方法，本法灵敏度高，选择性好，用于药品ＶＢ１２和水中钴含量的测定，结果满意。
Here our experimental showed that the absorbance(A) of a kind of cobalt(Ⅱ) in VB 12 over the range of to 2.8mg/L levels under given experimental conditions.The complex compound resulted from the reaction between 1,10 phenanthroline(phen) and the product,Fe(Ⅱ),generated from photoreduction of potassium ferric oxalate by using catalysis of cobalt(Ⅱ).In view of the above,a photochemical dynamic method to determine Co(Ⅱ) has been advanced.Investigated more minutely the experimental conditions and possible interfering ions,Co(Ⅱ) content in sample,H 2O、VB 12 ,were determined.
出处
《光谱实验室》
CAS
CSCD
1999年第2期218-220,共3页
Chinese Journal of Spectroscopy Laboratory
基金
河南省自然科学基金
关键词
光解反应
钴
分光光度法
测定
Photodecomposition Reaction,Coablt,Spectrophotometry.
