摘要
研究了硝酸介质中痕量硒(Ⅳ)催化溴酸钾氧化罗丹明B的褪色反应及动力学条件,建立了动力学光度法测定痕量硒(Ⅳ)的新方法,其灵敏度为0905μg·L-1,测定范围0～96μg·L-1。用于测定抗癌中草药中的硒(Ⅳ),获得了满意的结果。
Trace Se(Ⅳ) can catalyze the discolouring oxidizing reaction of RDB with potassium bromate in nitric acid medium, and the conditions of kinetics has been studied in detail. A new method of kinetics spectrophotometry for determination of trace(Ⅳ) is established . The sensitivity of the method is 0 905 μg·L -1 . The range of measurement is 0 9 6 μg·L -1 . The method has been used for determining trace Se(Ⅳ) in Chinese herbal medicine with satisfactory results.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2004年第11期1419-1421,共3页
Spectroscopy and Spectral Analysis
