Preliminary studies of PVC membranes based on 1-furoyl-3-phenylthiourea by impedance spectroscopy
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| Natura: | Artículo científico |
| Lingua: | en |
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Sociedad Mexicana de Física A.C.
2006
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| _version_ | 1876454254093271040 |
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| author | O. Arias de Fuentes |
| author_facet | O. Arias de Fuentes |
| contents | Preliminary studies of PVC membranes based on 1-furoyl-3-phenylthiourea by impedance spectroscopy O. Arias de Fuentes C. Jimenez A. Bratov. Física, Astronomía y Matemáticas PVC membrane chemical sensors Impedance spectroscopy The results obtained from characterization studies of sensor membranes by impedance spectroscopy are presented in this work. The PVC membrane used contained tris(2–ethylhexyl)phosphate as a plasticizer and 1–furoyl–3–phenylthiourea as an ionophore for lead ions. To perform this study, a special cell was designed by the authors. This made it possible to study the behavior of the electrical membrane characteristics with the lead concentrations in the solution. In all cases, the shape of the impedance spectra obtained showed a clear semicircle at high frequencies. This semicircle is associated with the bulk properties of the membranes. It was not possible to resolve another semicircle corresponding to the charge transfer at the interface. For this reason our study focussed on the bulk membrane electric characteristics. Both the dependence of the membrane resistance on the solution lead ion concentration and its behavior in time are reported. 2006 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57028295008 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.2 Vol.52 |
| format | Artículo científico |
| id | redalyc_57028295008 |
| institution | Redalyc |
| language | en |
| publishDate | 2006 |
| publisher | Sociedad Mexicana de Física A.C. |
| spellingShingle | Preliminary studies of PVC membranes based on 1-furoyl-3-phenylthiourea by impedance spectroscopy O. Arias de Fuentes Física, Astronomía y Matemáticas PVC membrane chemical sensors Impedance spectroscopy Preliminary studies of PVC membranes based on 1-furoyl-3-phenylthiourea by impedance spectroscopy O. Arias de Fuentes C. Jimenez A. Bratov. Física, Astronomía y Matemáticas PVC membrane chemical sensors Impedance spectroscopy The results obtained from characterization studies of sensor membranes by impedance spectroscopy are presented in this work. The PVC membrane used contained tris(2–ethylhexyl)phosphate as a plasticizer and 1–furoyl–3–phenylthiourea as an ionophore for lead ions. To perform this study, a special cell was designed by the authors. This made it possible to study the behavior of the electrical membrane characteristics with the lead concentrations in the solution. In all cases, the shape of the impedance spectra obtained showed a clear semicircle at high frequencies. This semicircle is associated with the bulk properties of the membranes. It was not possible to resolve another semicircle corresponding to the charge transfer at the interface. For this reason our study focussed on the bulk membrane electric characteristics. Both the dependence of the membrane resistance on the solution lead ion concentration and its behavior in time are reported. 2006 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57028295008 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.2 Vol.52 |
| title | Preliminary studies of PVC membranes based on 1-furoyl-3-phenylthiourea by impedance spectroscopy |
| topic | Física, Astronomía y Matemáticas PVC membrane chemical sensors Impedance spectroscopy |
| url | https://www.redalyc.org/articulo.oa?id=57028295008 |