Abstract
Eight microelectrodes based on carbon and diamond paste modified with zinc complexes with: tetraphenylporphyrin (ZnTPP), tetranaphtoporphyrin (ZnTNP), tetrasulphophenylporphyrin (ZnTSPP) and phtalocyanine (ZnPc), were proposed for the assay of indigo carmine in wastewaters, pharmaceutical formulations and biological samples. All measurements were performed using differential pulse voltammetry. Indigo carmine was recovered reliable from real samples in percentages higher than 90.00%. The surface of the microelectrodes can easily be renewed by simple polishing, obtaining a fresh surface ready for use in a new assay.
Funder
Unitatea Executiva pentru Finantarea Invatamantului Superior, a Cercetarii, Dezvoltarii si Inovarii
Publisher
The Electrochemical Society
Subject
Electronic, Optical and Magnetic Materials
Cited by
5 articles.
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