Studies on porphyrins as ultra-highly sensitive analytical reagents (Review).

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  • 超高感度分析試薬としてのポルフィリン
  • チョウ コウカンド ブンセキ シヤク トシテノ ポルフィリン

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Abstract

Water-soluble porphyrins have been extensitively studied in analytical chemistry. In order to evaluate the analytical function of these reagents, the following items, are reviewed and discussed: acid-base reactions, complex formation and spectral properties (Soret absorption band, fluorescence and phosphorescence of porphyrins). Based on these fundamental facts, various spectrophotometric methods for ppb-level trace metal ions are summarized in this article. Recently, determinations below the ppb levels of metal ions have been performed by the following methods: chemical amplification, a new pre-concentration method using fluoro-surfactant and laser analysis. Moreover, new determination methods for anion species and polyelectrolytes are described. Finally, the possibility of water-soluble porphyrins is discussed based on novel molecular designs.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 46 (1), 1-23, 1997

    The Japan Society for Analytical Chemistry

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