Determination of trace metal ions by AAS in natural water samples after preconcentration of pyrocatechol violet complexes on an activated carbon column

被引：259

作者：

Narin, I

Soylak, M ^{[1
]}

Elçi, L

Dogan, M

机构：

[1] Erciyes Univ, Fac Arts & Sci, Dept Chem, TR-38039 Kayseri, Turkey

[2] Nigde Univ, Fac Art & Sci, Dept Chem, TR-51100 Nigde, Turkey

[3] Hacettepe Univ, Fac Sci, Dept Chem, TR-06532 Ankara, Turkey

来源：

TALANTA | 2000年 / 52卷 / 06期

关键词：

preconcentration; activated carbon column; trace metal; natural waters; AAS;

D O I：

10.1016/S0039-9140(00)00468-9

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A simple preconcentration method is described for the determination of Cu, Mn, Co, Cd, Pb, Ni and Cr in water samples by flame AAS. Trace metal ions in water were sorbed as pyrocatechol violet complexes on activated carbon column at the pH range of 4-8, then eluted with 1 M HNO3 in acetone. The effect of major cations and anions of the natural water samples on the sorption of metal ions has been also investigated. The concentration of the metal ions detected after preconcentration was in agreement with the added amount. The present method was found to be applicable to the preconcentration of Cu, Mn, Co, Cd, Pb, Ni and Cr in natural water samples with good results such as R.S.D. from 3 to 8% (N = 10) and detection limits under 70 ng. 1(-1). (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：1041 / 1046

页数：6

共 38 条

[1] Co-precipitative pre-concentration with sodium diethyldithiocarbamate and ICP-AES determination of Se, Cu, Pb, Zn, Fe, Co, Ni, Mn, Cr and Cd in water [J].