PRECONCENTRATION AND DETERMINATION OF TRACE PERMANGANATE, CHROMATE AND MOLYBDATE IONS, USING AN ION-EXCHANGER (CELLULOSE-HYPHAN) AND ATOMIC-ABSORPTION SPECTROMETRY

被引：14

作者：

KENAWY, IMM

ELDEFRAWY, MM

KHALIL, MS

ELSAID, KS

机构：

[1] Chemistry Department, Faculty of Science, Mansoura University, Mansoura, A.R.

来源：

ANALYTICAL LETTERS | 1993年 / 26卷 / 06期

关键词：

PERMANGANATE; CHROMATE AND MOLYBDATE PRECONCENTRATIONS; DETERMINATION; CELLULOSE-HYPHAN AND ATOMIC ABSORPTION SPECTROMETRY;

D O I：

10.1080/00032719308019899

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The use of a cellulose ion-exchanger (Hyphan) for the isolation of MnO4-, CrO42- and MoO42- from aqueous solution after reduction with different reducing agents is described. After preconcentration, Mn(II), Cr(III) and molybdenum cations were determined by atomic absorption spectrometry. Furthermore, the distribution coefficients K(d) of the investigated cations as a function of pH were studied, and are in the range 10(4.3) - 10(5.9) cm3 g-1 for the above cations. The interfering effects of different foreign ions were studied. Moreover, the metal complexes formed by the chelating ion-exchanger are characterized by ir spectroscopy, magnetic measurements and thermal analysis. An analytical application for the preconcentration and separation by cellulose-Hyphan and determination of metal ions studied in tap, Nile, waste and sea water was carried out.

引用

页码：1227 / 1242

页数：16

共 32 条

[1] ZIRCONIUM COPRECIPITATION FOR SIMULTANEOUS MULTIELEMENT DETERMINATION OF TRACE-METALS IN SEAWATER BY INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION-SPECTROMETRY [J].