| dc.contributor | Universidade Estadual Paulista (UNESP) | |
| dc.creator | Teixeira, Marcos F. S. | |
| dc.creator | Dadamos, Tony R. L. | |
| dc.date | 2014-05-20T13:23:13Z | |
| dc.date | 2014-05-20T13:23:13Z | |
| dc.date | 2009-01-01 | |
| dc.date.accessioned | 2017-04-05T19:56:59Z | |
| dc.date.available | 2017-04-05T19:56:59Z | |
| dc.identifier | Proceedings of The Eurosensors Xxiii Conference. Amsterdam: Elsevier B.V., v. 1, n. 1, p. 297-300, 2009. | |
| dc.identifier | 1876-6196 | |
| dc.identifier | http://hdl.handle.net/11449/6972 | |
| dc.identifier | 10.1016/j.proche.2009.07.074 | |
| dc.identifier | WOS:000275995600210 | |
| dc.identifier | WOS000275995600210.pdf | |
| dc.identifier | http://dx.doi.org/10.1016/j.proche.2009.07.074 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/855777 | |
| dc.description | An amperometric dipyrone sensor based on a polymeric nickel-salen (salen = N,N'-ethylenebis(salicydeneiminato)) film coated platinum electrode was developed. The sensor was constructed by electropolymerization of nickel-salen complex at a platinum electrode in acetonitrile/tetrabuthylamonium perchlorate by cyclic voltammetry. After cycling the modified electrode in a 0.50 mol L-1 KCl solution, the estimated surface concentration was found to be equal to 1.29 x 10(-9) mol cm(-2). This is a typical behavior of an electrode surface immobilized with a redox couple that can usually be considered as a reversible single-electron reduction/oxidation of the nickel(II)/nickel(III) couple. A plot of the anodic current versus the dipyrone concentration for chronoamperometry (potential fixed = +0.50 V) at the sensor was linear in the 4.7 x 10(-6) to 1.1 x 10(-4) mol L-1 concentration range and the concentration limit was 1.2 x 10(-6) mol L-1. The proposed electrode is useful for the quality control and routine analysis of dipyrone in pharmaceutical formulations. | |
| dc.language | eng | |
| dc.publisher | Elsevier B.V. | |
| dc.relation | Proceedings of The Eurosensors Xxiii Conference | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.subject | modified electrode | |
| dc.subject | nickel-salen polymer | |
| dc.subject | amperometric detection | |
| dc.subject | dipyrone analysis | |
| dc.title | An electrochemical sensor for dipyrone determination based on nickel-salen film modified electrode | |
| dc.type | Otro | |
