2-[2'-(6'-METHYL-BENZOTHIAZOLYL)AZO]-5-DIMETHYLAMINOBENZOIC ACID AS A NEW REAGENT FOR RAPID SPECTROPHOTOMETRIC DETERMINATION OF COPPER

被引：5

作者：

ZHU, YY

LIU, JH

LIU, P

ZHOU, XJ

机构：

[1] Department of Chemistry, Hangzhou University, Hangzhou

来源：

MIKROCHIMICA ACTA | 1993年 / 112卷 / 1-4期

关键词：

COPPER; 2-[2'-(6'-METHYL-BENZOTHIAZOLYL)AZO]-5-DIMETHYLAMINOBENZOIC ACID; SPECTROPHOTOMETRY;

D O I：

10.1007/BF01243329

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

2-[2'-(6-methyl-benzothiazolyl)azo]-5-dimethylaminobenzoic acid (MBTAMB) has been synthesized and employed as a new reagent for the spectrophotometric determination of copper(II). A blue complex is formed from MBTAMB and Cu(II) in the range of pH 2.0-5.0 in aqueous ethanol. The composition of the complex is Cu(II): MBTAMB = 1 : 1. The maximum absorption of the complex is at 660 nm, its apparent molar absorptivity is 7.0 x 10(4) 1 . mole-1 . cm-1. Beer's law is obeyed for copper in the range of 0-0.72 mug/ml. The method has been used for the determination of micro amounts of copper in aluminium alloy. The proposed method is simple, rapid and accurate.

引用

页码：127 / 133

页数：7

共 17 条

[1] SYNTHESES AND SPECTROPHOTOMETRIC STUDIES OF 2-(2-THIAZOLYLAZO)-5-DIMETHYLAMINOBENZOIC AND 2-(2-BENZOTHIAZOLYLAZO)-5-DIMETHYLAMINOBENZOIC ACIDS AS ANALYTICAL REAGENTS - DETERMINATION OF NICKEL [J].