Application of Tetra Cyclohexyl Tin(IV) as an Anionic Carrier for the Construction of a New Salicylate Membrane Sensor |
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| Authors: | Mohammad Reza Ganjali Parviz Norouzi Farnoush Faridbod Morteza Rezapour Abbas Ahmadi |
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| Affiliation: | 1. Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran;2. Endocrinology & Metabolism Research Center, Medical Sciences/University of Tehran, Tehran, Iran;3. Department of Science, School of Chemistry, Islamic Azad University, Karaj Branch, Karaj, Iran |
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| Abstract: | A new tin complex namely tetracyclohexyl tin(IV) (TCHT) was synthesized and used as the ion carrier for the construction of a highly selective salicylate sensor. This sensor shows a Nernstian response to salicylate ions over a very wide concentration (1.0 × 10?7–1.0 × 10?1 M) in a pH range of 5.5–10.5. The optimum selectivity and response could be obtained for a membrane incorporating 30% PVC, 61% BA, 3% of cationic additive (HTAB) and 6% of TCHT. The response time of the electrode is very short in the whole concentration range (15 s). The electrode also shows an excellent discriminating ability for salicylate ions with respect to the most common organic and inorganic anions including chloride, sulfate, nitrate, nitrite, cyanide, sulfite, iodide, thiocyanate, phosphate, acetate, oxalate, citrate, and tartarate ions. The detection limit of the proposed sensor is 8.0 × 10?8 M. The electrode was successfully used for determining the concentration of salicylate ion in synthetic serums. |
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| Keywords: | Salicylate ion selective electrode PVC membrane Tetra cyclohexyl tin(IV) |
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