Determination of minor constituents in silicates by an acid digestion/flow injection method
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- IIDA Hiroe
- Department of Applied Chemistry, Nagoya Institute of Technology
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- UCHIDA Tetsuo
- Department of Applied Chemistry, Nagoya Institute of Technology
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- YUCHI Akio
- Department of Applied Chemistry, Nagoya Institute of Technology
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- KONISHI Miwa
- Department of Applied Chemistry, Nagoya Institute of Technology
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- ITO Satomi
- Department of Applied Chemistry, Nagoya Institute of Technology
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- ISOYAMA Hirofumi
- Toki Municipal Institute of Ceramics
Bibliographic Information
- Other Title
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- 酸分解/フローインジェクション分析法によるケイ酸塩副成分の定量
- サン ブンカイ フローインジェクション ブンセキホウ ニ ヨル ケイ サンエン フクセイブン ノ テイリョウ
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Abstract
Minor constituents of TiO2, MnO and P2O5 in standard silicates were determined sequentially using a single acid decomposed sample solution by FIA. The FIA system simply consisted of 2 streams without heating, common to all constituents. The residual F in the sample solution changed from 20 to 140 mM, proportional to the sum of the coexisting Al, Fe, Mg and Ca. The TiO2-H2O2 complex was measured in 1 M HClO4 and 0.2 M H3BO3, eliminating Fe and F interferences, respectively. Mn(II) was oxidized rapidly by NaIO4 in the presence of MnO4− as an autocatalyzer in 0.2 M H3PO4. P2O5 was measured by the “Micell-molybdenum yellow method” using Triton X-100 to improve the sensitivity and to avoid F interference. The obtained analytical results were reproducible and agreed fairly well with those by batch and ICP-AES methods and with the certified values. The proposed sample decomposition was carried out for 10 samples/3 h in parallel.<br>
Journal
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- BUNSEKI KAGAKU
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BUNSEKI KAGAKU 52 (7), 527-532, 2003
The Japan Society for Analytical Chemistry
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Details 詳細情報について
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- CRID
- 1390001204353675776
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- NII Article ID
- 110002905251
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- NII Book ID
- AN00222633
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- COI
- 1:CAS:528:DC%2BD3sXls1yhsrg%3D
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- NDL BIB ID
- 6645084
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- ISSN
- 05251931
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- Abstract License Flag
- Disallowed