Determination of sulfate in ethanol fuel using an electrode chemically modified with polypyrrole by flow injection analysis
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
15/05/2015
15/05/2015
2010
|
Resumo |
In this work, an electrode chemically modified with polypyrrole (PCME) was employed for determination of sulfate in ethanol fuel using a FIA system. The PCME was prepared by polymerization of pyrrole at a glassy carbon electrode by means of cyclic voltammetry technique. An analytical curve from 1.0 x 10−5 to 8.0 x 10−5 mol L−1 was obtained in flow injection system based on the PCME. An amperometric sensibility of 2.3 x 10−3 A mol−1 L and a detection limit of 2.5 x 10−6 mol L−1 were achieved. The proposed method was employed for determination of sulfate ions in commercial samples of ethanol fuel. The results were in good agreement with those obtained by the ionic chromatographic method. |
Formato |
220-227 |
Identificador |
http://www.indianjournals.com/ijor.aspx?target=ijor:jbf&volume=1&issue=2&article=005 Journal of Biofuels, v. 1, n. 2, p. 220-227, 2010. 0976-3015 http://hdl.handle.net/11449/123528 http://dx.doi.org/10.5958/j.0976-3015.1.2.027 0072173018005712 6167204386206414 1923726000036625 8477732400095433 1183672452248157 |
Idioma(s) |
eng |
Relação |
Journal of Biofuels |
Direitos |
closedAccess |
Palavras-Chave | #Ethanol fuel #Sulfate determination #Polypyrrole-film #Flow injection analysis |
Tipo |
info:eu-repo/semantics/article |