Výsledky vyhledávání - "Venghout Cheam"

Direct determination of lead in sea-waters by laser-excited atomic fluorescence spectrometry

Autor: Venghout Cheam, R. Desrosiers, Ivan Sekerka, Josef F. Lechner

Publikováno v: Journal of Analytical Atomic Spectrometry. 9:315

This paper describes a laser-excited atomic fluorescence spectrometric method for direct determination of lead in sea-waters down to femtogram levels. No separation/concentration steps nor chemical modifier were used. A programmable, in situ, known a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8cbc319ab191c6888ad2ea9cad00476d
https://doi.org/10.1039/ja9940900315

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Comparison of ion chromatographic methods for the determination of organic and inorganic acids in precipitation samples

Autor: Venghout Cheam

Publikováno v: The Analyst. 117:1137

A comparison of three ion chromatographic methods for the determination of organic and inorganic acids in precipitation samples has been made, in order to identify which method or combination of methods is most suitable for the determination of these

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::15daa732e85f62e60c36bba1988cde8e
https://doi.org/10.1039/an9921701137

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