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AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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The STUDIA UNIVERSITATIS BABEŞ-BOLYAI issue article summary The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name. |
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STUDIA CHEMIA - Issue no. 2 / 2007 | |||||||
Article: |
DETERMINATION OF CADMIUM IN ENVIRONMENTAL SAMPLES USING THE METHANE - AIR FLAME ATOMIC ABSORPTION SPECTROMETRY. Authors: LADISLAU KÉKEDY-NAGY, JÓZSEF SZŰCS-BALÁZS. |
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Abstract: The cadmium content of some soil, tree leave, grape and lichens samples has been determined directly by flame atomic absorption spectrometry using the methane-air flame. The flame and instrumental parameters were optimized; the best results were obtained with the lamp current of 5 mA, at the observation height of 11 mm, with the stoichiometric flame. The detection limit of 0.05 ± 0.02 mg.L-1 was obtained at a significance level of 0.05. The cadmium content of environmental samples has been determined with the external calibration curve and the standard addition method. In all cases, the results of two methods agree within the quantification error. | |||||||
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