AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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Autori: LÁSZLÓ KISS, SÁNDOR KUNSÁGI-MÁTÉ.
DOI: 10.24193/subbchem.2021.4.11
Published Online: 2021-12-30
Published Print: 2021-12-30
pp. 149-158
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This study reveals the behavior of resorcinol, phloroglucinol and pyrogallol in several non-aqueous solvents (acetonitrile, acetone, dimethyl sulphoxide, dimethyl formamide, nitrobenzene, nitromethane, dichloromethane, methanol). The voltammetric curves showed that the results obtained with the outlined compounds depend strongly on the solvent used. Resorcinol and phloroglucinol undergo some fouling during their electrooxidation while pyrogallol gave reproducible voltammograms in many solvents. The optimal solvent was chosen then for the determination of pyrogallol in cooking oil taking into consideration the antifouling, miscibility, permittivity and viscosity effects with steady-state voltammetry by using microelectrode.
Keywords: Resorcinol; Phloroglucinol; Pyrogallol; Co-solvent; Microelectrode
