摘要
研究了在硫酸介质中 ,微量铬 催化溴酸钾氧化甲基橙褪色的反应 ,建立了测定痕量铬 的催化动力学新方法。有色溶液的最大吸收波长在 5 10nm ,方法的线性范围 0～ 0 0 6μg/mL ,检出限为 1 12× 10 - 1 0 g/mL。此法用于电镀废水中铬 的测定 ,结果满意。
A new kinetic spectrophotometric method for the determination of Cr*& based on its catalytic effect of the oxidation of methyl orange by potassium bromate was established The detection limit was 1 12×10 -10 g/mL and linear range was 0-0 60μg/10mL for chromium*& The method has been used for determining chromium*& in electroplating waste water and the results were satisfactory
出处
《冶金分析》
CAS
CSCD
北大核心
2003年第4期36-37,共2页
Metallurgical Analysis
关键词
催化动力学光度法
测定
铬
甲基橙
电镀废水
catalytic kinetic spectrophotometry
methyl orange
chromium*&
electroplating waste water
