摘要
研究了Cr(Ⅵ)离子对H2O2氧化孔雀石绿退色反应的催化效应及其动力学条件,从而建立了痕量铬(Ⅵ)的催化光度法.本法的测定范围为1.0~5.0μg/25mL,检出限为2.56×10-8g/mL,用该法测定环境水样中的Cr(Ⅵ),取得满意的结果.
This paper studied the catalytic effect and dynamic conditions of trace Cr(Ⅵ) on the decolorization Malachite Green by H 2O 2 hence the devtopment of method for the determination of trace Cr(Ⅵ) .The linear response was in the range of 1.0 to 5.0μg/25mL,and the detection limit in this method was 2.56×10 -8 g·mL -1 .Satisfactory results were obtained from the determination of trace Cr(Ⅵ) in the water sample.
出处
《南京师大学报(自然科学版)》
CAS
CSCD
1997年第4期58-60,共3页
Journal of Nanjing Normal University(Natural Science Edition)
关键词
催化光度法
孔雀石绿
铬
废水
Catalytic spectrophctometrec method,Maka chite Green,chrominm