Direct determination of chromium(III) and chromium(VI) with ion chromatography using direct current plasma emission as element-selective detector.
J Chromatogr Sci
; 27(1): 30-7, 1989 Jan.
Article
em En
| MEDLINE
| ID: mdl-2925826
ABSTRACT
A method is described that utilizes direct current plasma atomic emission spectrometry as an element-selective method of detection for ion chromatographic determination of chromium(III) and chromium(VI) species. The eluting chromium-containing species are detected on the basis of the atomic emission of chromium without any species conversion. Both anion and cation separator columns give similar results when used with varying sample matrices. By employing an on-column preconcentration procedure, the detectable concentrations of the chromium species are reduced to less than 1.0 ppb. This method is applied to the determination of chromium species in human serum, natural water, and industrial process stream samples.
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Base de dados:
MEDLINE
Assunto principal:
Cromo
Limite:
Humans
Idioma:
En
Ano de publicação:
1989
Tipo de documento:
Article