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  • 标题:A New Simple Ester Ionophore Based Calcium Ion Selective Electrode − Preparation and its Analytical Application
  • 本地全文:下载
  • 作者:A. Vijayalakshmi ; J. Thamarai Selvi
  • 期刊名称:Research Journal of Recent Sciences
  • 电子版ISSN:2277-2502
  • 出版年度:2014
  • 卷号:3
  • 页码:362-365
  • 语种:English
  • 出版社:International Science Community Association
  • 摘要:A new simple efficient calcium ion selective electrode has been prepared using simple ester. A heterogeneous precipitate has been used as ion carriers for the preparation of Ca (II) selective membrane sensor. The sensor exhibits a near Nernstian response for Ca(II) ion over a concentration range of 1.0 x 10-4M to 1.0x10-1M. The proposed sensors revealed relatively good selectively and high sensitivity for Ca(II)over a mono and divalent cations and anions . It can be used within the pH range of 3.42 to 6.24. The effect of medium and the selectivity coefficient values were evaluated using fixed interference method found to give a better response. It was also successfully used in the analysis of concentration of calcium in various real samples.
  • 关键词:Calcium (II);potentiometry;polyvinylchloride (PVC);ester
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