| Autor: |
Milacic, R., Dolinsek, F. |
| Zdroj: |
International Journal of Environmental & Analytical Chemistry; December 1994, Vol. 57 Issue: 4 p329-337, 9p |
| Abstrakt: |
Investigations of air pollution were carried out in the Zasavje urban industrialized region in Slovenia. Cadmium and lead were measured in respirable (< 2.5 μ) and inhalable (2.5-10 μ) aerosols. Special pumps were equipped with a Nucleopore-Costar polycarbonate membrane filters. Cadmium and lead were measured in those filters by slurry electrothermal atomic absorption spectrometry (ETAAS) on a laboratory-assembled atomic absorption spectrometer with a graphite cup atomizer. A reliability of the employed technique was proved by analysis of the same filters with classical dissolution of aerosol particles in diluted nitric acid and measurement of cadmium and lead by flame atomic absorption spectrometry (FAAS). Good agreement (±5-10%) of the results was obtained between the two techniques for both elements. The study indicated that cadmium and lead in a contaminated area prevailed in the respirable (< 2.5 μ) aerosols. The employed technique was sensitive enough for measurement of cadmium and lead also in non-polluted sites. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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