SPECTROPHOTOMETRIC DETERMINATION OF COPPER IN ALUMINUM-ALLOYS USING 2-[2-(4-METHYLBENZOTHIAZOLYL)AZO]-5-DIMETHYLAMINOBENZOIC ACID

被引：5

作者：

FURUKAWA, M

KATAMI, T

SHIBATA, S

机构：

[1] GIFU PREFECTURAL RES INST ENVIRONM POLLUT,GIFU 500,JAPAN

[2] NAGOYA COLL ARTS & DESIGN,KOMAKI 485,JAPAN

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1993年 / 347卷 / 10-11期

关键词：

D O I：

10.1007/BF00635478

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

2-[2-(4-Methylbenzothiazolyl)azo]-5-dimethylaminobenzoic acid (4-Me-BTAMB) reacts with copper(II) to, form a 1 : 1 complex as a selective chromogenic reagent. In aqueous 1,4-dioxane solution a blue colour is obtained with an absorbance peak at 650 nm. The apparent molar absorptivity of the 4-Me-BTAMB copper(II) complex was 3.1 x 10(4) l mol-1 cm-1. The optimum range for measurement in 1.0-cm cells was 0.04 - 2 mg Cu(II) l-1. The proposed method is simple and very selective, and has been applied to the determination of copper in aluminium alloys.

引用

页码：462 / 464

页数：3