Preconcentration procedures for trace cadmium determination in natural aqueous systems prior to Zeeman ETAAS

被引：8

作者：

Cundeva, K

Stafilov, T

Pavlovska, G

Karadjova, I

Arpadjan, S

机构：

[1] Univ St Cyril & Methudius, Inst Chem, Fac Sci, Skopje 1001, Macedonia

[2] St Kliment Ohridski Univ, Fac Chem, Sofia, Bulgaria

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY | 2003年 / 83卷 / 12期

关键词：

cadmium; preconcentration; flotation; Zeeman ETAAS;

D O I：

10.1080/03067310310001621051

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Nanotrace Cd determination in natural waters using two new flotation collectors, lead(II) heptyldithiocarbamate, Pb(HpDTC)(2) , and cobalt(III) heptyldithiocarbamate, Co(HpDTC)(3) , are presented. The optimization of the most important experimental parameters for flotation is given. Zeeman electrothermal atomic absorption spectrometry (ZETAAS) is used as an instrumental technique for Cd measurement. The results are compared with those obtained by other preconcentration procedures as independent methods. The limit of detection of ZETAAS using Pb(HpDTC)(2) as collector is 4.8 ng/L, while using Co(HpDTC)(3) it is 3.0 ng/L.

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收藏

页码：1009 / 1019

页数：11

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