Silver(I) ion-selective membrane based on Schiff base-p-tert-butylcalix[4]arene

The Analyst
R K MahajanInderpreet Kaur

Abstract

A PVC membrane electrode for silver(I) ion based on Schiff base-p-tert-butylcalix[4]arene is reported. The electrode works well over a wide range of concentration (1.0 x 10(-5)-1.0 x 10(-1) mol dm-3) with a Nernstian slope of 59.7 mV per decade. The electrode shows a fast response time of 20 s and operates in the pH range 1.0-5.6. The sensor can be used for more than 6 months without any divergence in the potential. The selectivity of the electrode was studied and it was found that the electrode exhibits good selectivity for silver ion over some alkali, alkaline earth and transition metal ions. The silver ion-selective electrode was used as an indicator electrode for the potentiometric titration of silver ion in solution using a standard solution of sodium chloride; a sharp potential change occurs at the end-point. The applicability of the sensor to silver(I) ion measurement in water samples spiked with silver nitrate is illustrated.

Citations

Apr 8, 2006·Analytical and Bioanalytical Chemistry·Ashok Kumar Singh, Puja Saxena
Oct 31, 2008·Talanta·R K MahajanInderpreet Kaur
Jun 3, 2004·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Rakesh Kumar MahajanManoj Kumar
Jul 2, 2003·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·S M Golabi, J Mohammadi
Nov 5, 2004·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Rakesh Kumar MahajanParvesh Singh
Jun 9, 2006·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Guangrong YeJianyuan Dai
May 6, 2010·The Analyst·Manoj KumarRakesh Kumar Mahajan
Mar 15, 2003·Analytical and Bioanalytical Chemistry·Mohammad Hossein Mashhadizadeh, Iran Sheikhshoaie
Feb 15, 2017·Chemistry : a European Journal·Steve UllmannBerthold Kersting

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