SPECTROPHOTOMETRIC DETERMINATION OF COPPER(II) FOLLOWING COLLECTION ON AN ORGANIC SOLVENT-SOLUBLE MEMBRANE-FILTER AS THE N,NORMAL-DIETHYLDITHIOCARBAMATE COMPLEX

被引：16

作者：

KAN, M ^{[1
]}

SAKAMOTO, H ^{[1
]}

NASU, T ^{[1
]}

TAGA, M ^{[1
]}

机构：

[1] HOKKAIDO UNIV,CHEM LAB,SAPPORO 002,JAPAN

来源：

ANALYTICAL SCIENCES | 1991年 / 7卷 / 06期

关键词：

COPPER(II); MEMBRANE FILTER COLLECTION; N; NORMAL-DIETHYLDITHIOCARBAMATE; NATURAL WATER; ENVIRONMENTAL CERTIFIED REFERENCE MATERIAL;

D O I：

10.2116/analsci.7.913

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A highly sensitive, rapid and facile method is described for the determination of copper(II). A small amount of copper(II) is quantitatively collected on a membrane filter made of cellulose nitrate as a colored complex with N,N-diethyldithiocarbamate without carrier substances. The complex, together with the membrane filter, is dissolved in N,N-dimethylformamide (DMF), and the absorbance of the solution is measured for the determination. The calibration curve was linear from 0.1 to 8.8-mu-g of copper(II) in 3.0-cm3 DMF. The apparent molar absorptivity of copper(II) was 1.20 x 10(4) dm3 mol-1 cm-1. The relative standard deviations at 1.2 and 6.0-mu-g of copper(II) were 4.3% (n = 13) and 1.1% (n = 12), respectively. The method was applied to the determination of copper in environmental certified reference material (NIES No. 1, Pepperbush) and water samples.

引用

页码：913 / 917

页数：5

共 22 条

[1] THE SENSITIVE AND SELECTIVE DETERMINATION OF PALLADIUM(II) BASED ON TERNARY-COMPLEX FORMATION WITH PHLOXINE AND THIAMINE [J].