Separation, preconcentration, and determination of cadmium in drinking waters.
J Environ Sci Health A Tox Hazard Subst Environ Eng
; 36(5): 735-46, 2001 May.
Article
em En
| MEDLINE
| ID: mdl-11460328
ABSTRACT
A fast method for separation, preconcentration and determination of cadmium in drinking (source, well, tap) and water for irrigation is described. Iron(III) hexamethylenedithiocarbamate, Fe(HMDTC)3, has the role of colloid precipitate flotation collector. The determination of cadmium in final water solutions preconcentrated by flotation can be performed by flame (FAAS) or electrothermal atomic absorption spectrometry (ETAAS). The method applied, either FAAS or ETAAS, depends of the concentration level of analyte in the water sample investigating. The AAS results are compared with inductively coupled plasma-atomic emission spectrometric measurements (ICP-AES) as an independent method. The ETAAS detection limit of cadmium is 0.002 microgram/L.
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Base de dados:
MEDLINE
Assunto principal:
Abastecimento de Água
/
Cádmio
/
Monitoramento Ambiental
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Revista:
J Environ Sci Health A Tox Hazard Subst Environ Eng
Assunto da revista:
TOXICOLOGIA
Ano de publicação:
2001
Tipo de documento:
Article