Determination of cadmium at ultra-trace level by FI cold vapor generation AAS with on-line ion exchange preconcentration

Authors
Yao, B Xu, SK Fang, ZL
Citation
B. Yao et al., Determination of cadmium at ultra-trace level by FI cold vapor generation AAS with on-line ion exchange preconcentration, CHEM J CH U, 22(8), 2001, pp. 1301-1304
Citations number
11
Categorie Soggetti
Chemistry
Journal title
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN journal
02510790 → ACNP
Volume
22
Issue
8
Year of publication
2001
Pages
1301 - 1304
Database
ISI
SICI code
0251-0790(200108)22:8<1301:DOCAUL>2.0.ZU;2-0
Abstract
A method for the determination of cadmium by flow injection cold vapor gene ration atomic absorption spectrometry (FI-CVGAAS) with an on-line ion excha nge micro-column preconcentration system was developed using IRC-718, 122 a nd Muromac A-1 resin. The interferences from coexisting elements were studi ed. The detection limit(3 sigma) was 2. 3-3. 0 ng/L with a sampling frequen cy of 45-60/h. The precision was 2. 0%-2-6% RSD(n = 11) at 0. 2 mug/L level . The method was applied to the analysis of water samples. Satisfactory rec overies of cadmium in reservoir water, tap water and brine waters were obta ined for spiked samples.