Preconcentration and determination of osmium(VIII) using silicas chemically modified with sulfur-containing groups

被引：1
|
作者：
Losev, V. N. [1 ]
Parfenova, V. V. [1 ]
Elsuf'ev, E. V. [1 ]
Trofimchuk, A. K. [2 ]
机构：
[1] Siberian Fed Univ, Kristall Res & Engn Ctr, Krasnoyarsk 660041, Russia
[2] Taras Shevchenko Natl Univ, Fac Chem, UA-01033 Kiev, Ukraine
来源：
JOURNAL OF ANALYTICAL CHEMISTRY | 2015年 / 70卷 / 07期
关键词：
adsorption; chemically modified silicas; sulfur-containing groups; osmium; SORPTION-PHOTOMETRIC DETERMINATION; SPECTROPHOTOMETRIC DETERMINATION; THIOUREA DERIVATIVES; OXIDATION-STATES; EXTRACTION; METALS; COMPLEXES; MERCAPTO;
D O I：
10.1134/S1061934815070072
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
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.
引用
收藏
页码：781 / 787
页数：7
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