Hydroxide Ion-Selective Polymeric Membrane-Coated Wire Electrode Based on Oxomolybdenum(V) Tetraphenylporphyrin Complex

• Hideo Abe

  Insitute of Applied Biochemistry, University of Tsukuba

• Etsuo Kokufuta

  Insitute of Applied Biochemistry, University of Tsukuba

抄録

A coated wire electrode (CWE) was prepared by use of a poly(vinyl chloride)-supported liquid membrane containing oxoethoxo(5,10,15,20-tetraphenylporphyrinato)molybdenum(V) as a carrier. CWE based on such a metallo-porphyrin complex exhibits near-Nernstian responses to varying concentrations of NaOH, NaF, and C2H5OH, especially to NaOH over a wide concentration range. The pOH response curve was influenced by certain anions other than OH− ion, but not by cations such as Li+, Na+, K+, and Cs+. The mixed solution method gave a selectivity sequence OH−>>ClO4−>NO2−>F−∼SCN−>I−>NO3−>SO3−>Br−>SO42−, with a preference for OH− over ClO4− by 104.6 and over F− (or SCN−) by 106.2. In addition, Cl− ion was found to have little interfering effect under conditions used in the measurements of selectivity coefficients. Both response-time profile and pOH-response curve scarcely varied even when CWE was stored in distilled water for 167 days.

収録刊行物

• Bulletin of the Chemical Society of Japan

  Bulletin of the Chemical Society of Japan 63 (5), 1360-1364, 1990-05-01

  Oxford University Press (OUP)

キーワード

• General Chemistry

詳細情報

• CRID: 1360283694080039808
• NII論文ID: 130001979598
• DOI: 10.1246/bcsj.63.1360
• ISSN: 13480634
• ISSN: 00092673
• Web Site: https://academic.oup.com/bcsj/article-pdf/63/5/1360/56213882/bcsj.63.1360.pdf
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