A Cobalt-Nickel Metal-Alloy Thin-Film Sensor for Hydrogen-Phosphate Ion

DOI Web Site PubMed 被引用文献1件 参考文献19件

この論文をさがす

抄録

<p>Cobalt-nickel alloy thin-films were prepared by electrodepositing on Au-coated Al2O3 substrate from aqueous solutions of metal-salts, and applied as a potentiometric hydrogen-phosphate ion sensor. A doping of 20 mol% nickel in cobalt contributed to enhancing hydrogen-phosphate ion sensing performances, i.e., the sensing range and response time were drastically improved. The Co80Ni20 thin-film electrode showed good potentiometric response to hydrogen-phosphate ion between 1.0 × 10−5 and 1.0 × 10−3 M with a slope of –59 mV/decade and high anion selectivity. The 90% response time to 1 mM H2PO4− was as short as 15 s at pH 5.0, 30°C. A mixed potential sensing mechanism could be proposed on the basis of the results.</p>

収録刊行物

  • Analytical Sciences

    Analytical Sciences 37 (2), 337-340, 2021-02-10

    社団法人 日本分析化学会

被引用文献 (1)*注記

もっと見る

参考文献 (19)*注記

もっと見る

キーワード

詳細情報

問題の指摘

ページトップへ