Determination of minor constituents in silicates by an acid digestion/flow injection method

DOI NDL Digital Collections Web Site Web Site 2 Citations 9 References
  • IIDA Hiroe
    Department of Applied Chemistry, Nagoya Institute of Technology
  • UCHIDA Tetsuo
    Department of Applied Chemistry, Nagoya Institute of Technology
  • YUCHI Akio
    Department of Applied Chemistry, Nagoya Institute of Technology
  • KONISHI Miwa
    Department of Applied Chemistry, Nagoya Institute of Technology
  • ITO Satomi
    Department of Applied Chemistry, Nagoya Institute of Technology
  • ISOYAMA Hirofumi
    Toki Municipal Institute of Ceramics

Bibliographic Information

Other Title
  • 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

Search this article

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

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 52 (7), 527-532, 2003

    The Japan Society for Analytical Chemistry

Citations (2)*help

See more

References(9)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top