Preconcentration and determination of osmium(VIII) using silicas chemically modified with sulfur-containing groups
| Autor: | E. V. Elsuf’ev, Vladimir N. Losev, A. K. Trofimchuk, V. V. Parfenova |
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| Rok vydání: | 2015 |
| Předmět: |
inorganic chemicals
chemistry.chemical_classification endocrine system Inorganic chemistry chemistry.chemical_element Hydrochloric acid Sulfur containing Analytical Chemistry chemistry.chemical_compound Certified reference materials Adsorption chemistry Diffuse reflection spectroscopy Phase (matter) Osmium Dithiocarbamate |
| Zdroj: | Journal of Analytical Chemistry. 70:781-787 |
| ISSN: | 1608-3199 1061-9348 |
| Popis: | The adsorption of osmium(VIII) from sulfuric and hydrochloric acid solutions and gas phase on silicas chemically modified by dithiocarbamate, thiodiazolthiol, mercaptophenylpropylurea, and aminobenzothiazolpropyl groups is studied. A procedure is developed for the adsorption-photometric determination of osmium, including the adsorption of osmium(VIII) from the gas phase on silicas chemically modified by sulfur-containing groups and the determination of osmium in the adsorbent phase by diffuse reflection spectroscopy. The procedure was used to determine osmium in a certified reference material of the composition of a matte ore thermal melting and process waters. |
| Databáze: | OpenAIRE |
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