Electropolymerized Supramolecular Tetraruthenated Porphyrins Applied as a Voltammetric Sensor

Porphyrin 5,10,15,20-Tetra(4-pyridyl)manganese(III), [Mn-TPyP(H2O)2]PF6, and electropolymerized supramolecular porphyrins (ESP), {Mn-TPyP(H2O)2[RuCl3(dppb)]4}PF6 (dppb = 1,4-bis(diphenilphosphine)butane), were synthesized and characterized. A thin solid film of ESP was obtained on a glass carbon ele...

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Bibliographic Details
Published in:Journal of the Brazilian Chemical Society 2013-11, Vol.24 (11), p.1772-1780
Main Authors: Silva, Monize M. da, Ribeiro, Gabriel H., Batista, Alzir A., Faria, Anizio M. de, Bogado, André L., Dinelli, Luis R.
Format: Article
Language:eng ; por
Subjects:
CHEMISTRY, MULTIDISCIPLINARY
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Summary:Porphyrin 5,10,15,20-Tetra(4-pyridyl)manganese(III), [Mn-TPyP(H2O)2]PF6, and electropolymerized supramolecular porphyrins (ESP), {Mn-TPyP(H2O)2[RuCl3(dppb)]4}PF6 (dppb = 1,4-bis(diphenilphosphine)butane), were synthesized and characterized. A thin solid film of ESP was obtained on a glass carbon electrode surface by a cyclic voltammetry method. The peak current increased with the number of voltammetric cycles, which shows a typical behavior of the species being adsorbed on the surface of the electrode. Cyclic voltammetry was also employed for acetaminophen quantification using an ESP modified electrode. The modified electrode shows a linear relationship between the anodic peak current and the concentration of acetaminophen (in the rage 0.05 to 0.7 mmol L- 1). The performance of the modified electrode was verified by the determination of acetaminophen in a commercial pharmaceutical product and the results were in good agreement with those obtained by a control HPLC method.
ISSN:0103-5053
1678-4790
DOI:10.5935/0103-5053.20130222