Selenium content and its oxidation state in igneous rocks, rock-forming minerals, and a reservoir sediment.
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概要
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The selenium content of 188 samples (115 igneous rocks, 46 sedimentary rocks, and 27 sediments, including 38 rock-forming minerals and 25 rock reference materials) issued from the Geological Survey of Japan were determined. In these samples selenium was distributed over a wide range of concentrations, 0.1–19500 ng g<SUP>−1</SUP>. Especially, selenium was rich in alkali-feldspar (7.5–149 ng g<SUP>−1</SUP>) as well as in plagioclase (3.6–147 ng g<SUP>−1</SUP>), though not in mica (2.4–14.8 ng g<SUP>−1</SUP>) and quartz (0.6–6.4 ng g<SUP>−1</SUP>). Selenium, rich in feldspar, was easily dissolved as selenite with CO<SUB>2</SUB>-bubbling water. In a reservoir sediment-core (from the surface to 15-cm depth), selenite and much organically-complexed selenium were dissolved with 0.1 M hydrochloric acid and the subsequent 1 M sodium hydroxide solutions, respectively.
- 公益社団法人 日本化学会の論文
著者
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Tamari Yuzo
Department Of Chemistry Faculty Of Science Konan University
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Ogawa Hideaki
Department Of Surgery Sapporo Kosei General Hospital
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Tsuji Haruo
Department of Chemistry Faculty of Science Konan University
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Kusaka Yuzuru
Department of Chemistry Faculty of Science Konan University
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Fukumoto Yuji
Department of Chemistry, Faculty of Science, Konan University
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Ogawa Hideaki
Department of Chemistry, Faculty of Science, Konan University
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