Salicylate poly(vinyl chloride) membrane electrode based on (2-[(E)-2-(4-nitrophenyl) hydrazono]-1-phenyl-2-(2-quinolyl)-1-ethanone) Cu(II) |
| |
Authors: | Ardakani M Mazloum Jalayer M S Safari J Sadeghi Z Zare H R |
| |
Institution: | Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran. mazloum@yazduni.ac.ir |
| |
Abstract: | A new salicylate-selective electrode based on the complex of (2-(E)-2-(4-nitrophenyl)hydrazono]-1-phenyl-2-(2-quinolyl)-1-ethanone) Cu(II) as the membrane carrier was developed. The electrode exhibited a good Nernstian slope of -59.6+/-1.0 mV/decade and a linear range of 1.0 x 10(-6) to 1.0M for salicylate. The limit of detection was 5.0 x 10(-7) M. The electrode had a fast response time of 10 s and can be used for more than 3 months. The selective coefficients were determined by the fixed interference method and could be used in the pH range of 4.0 to 10.5. The electrode was employed as an indicator electrode for direct determination of salicylate in pharmaceutical and biological samples. |
| |
Keywords: | Salicylate-selective electrode Ionophore Ion-selective electrode |
本文献已被 ScienceDirect PubMed 等数据库收录! |