Salicylate Ion-Selective Electrode Based on New Tetranuclear Copper Complexes of O-Vannlin-methionine as Neutral Carriers

この論文にアクセスする

この論文をさがす

著者

    • Ye Guangrong YE Guangrong
    • Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Chemical Engineering, Southwest University
    • Chai Yaqin CHAI Yaqin
    • Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Chemical Engineering, Southwest University
    • Ruo Yuan [他] RUO Yuan
    • Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Chemical Engineering, Southwest University
    • ZHOU Lu
    • Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Chemical Engineering, Southwest University
    • LI Yan
    • Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Chemical Engineering, Southwest University
    • ZHANG Lina
    • Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Chemical Engineering, Southwest University

抄録

A new salicylate-selective PVC membrane electrode based on a new Schiff base tetranuclear copper complex of <i>O</i>-vannlin-methionine (Cu(II)<sub>4</sub>-TVM) as a neutral carrier is described. This electrode displays a preferential potentiometric response to salicylate and an anti-Hofmeister selectivity sequence in the following order: Sal<sup>-</sup> > ClO<sub>4</sub><sup>-</sup> > SCN<sup>-</sup> > I<sup>-</sup> > NO<sub>2</sub><sup>-</sup> > NO<sub>3</sub><sup>-</sup> > Br<sup>-</sup> > Cl<sup>-</sup> > SO<sub>3</sub><sup>2-</sup> > SO<sub>4</sub><sup>2-</sup> > H<sub>2</sub>PO<sub>4</sub><sup>-</sup>. The electrode exhibits near-Nernstian potential linear range of 1.5 × 10<sup>-6</sup> - 1.0 × 10<sup>-1</sup> M with a detection limit of 8.0 × 10<sup>-7</sup> M and a slope of -56.3 mV/decade in pH 3.0 - 8.0 of phosphorate buffer solution at 20°C. Thanks to the tetranuclear copper(II) in the carrier, the electrode has the advantages of simplicity, fast response, fair stability and reproducibility and low detection limit. The response mechanism to the electrodes is discussed by the a.c. impedance technique and the UV spectroscopy technique. The electrode can be applied to analyses of medicine and the results obtained are in fair agreement with the results given by a standard method.

収録刊行物

  • Analytical sciences : the international journal of the Japan Society for Analytical Chemistry  

    Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 23(2), 171-176, 2007-02-10 

    The Japan Society for Analytical Chemistry

参考文献:  49件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10018497507
  • NII書誌ID(NCID)
    AA10500785
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09106340
  • NDL 記事登録ID
    8628818
  • NDL 雑誌分類
    ZP4(科学技術--化学・化学工業--分析化学)
  • NDL 請求記号
    Z54-F482
  • データ提供元
    CJP書誌  NDL  J-STAGE 
ページトップへ