催化光度法测定环境水样中的铬(Ⅵ)  

The Determination of the Cr(Ⅵ) in the Water Sample by Catalytic Photometry

作　　者：曹永林[1,2] 邱凤仙[1,2] 戴玉华 

机构地区：[1]镇江师范专科学校 [2]丹阳师范学校

出　　处：《南京师大学报（自然科学版）》1997年第4期58-60,共3页Journal of Nanjing Normal University(Natural Science Edition)

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.

关 键 词：催化光度法 孔雀石绿 铬 废水 

分 类 号：X132[环境科学与工程—环境科学] O657.32[理学—分析化学]