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Voltammetric determination of tert-butylhydroquinone in biodiesel using a carbon paste electrode in the presence of surfactant.
Colloids Surf B Biointerfaces. 2010 Sep 01; 79(2):409-14.CS

Abstract

This paper reports an electroanalytical method developed for determining the antioxidant tert-butylhydroquinone (TBHQ) in biodiesel, based on the enhancement effect of cetyltrimethylammonium bromide (CTAB). In pH 6.5 Britton-Robinson buffer, a poorly defined oxidation peak was observed for TBHQ at a carbon paste electrode (CPE). In the presence of low concentrations of CTAB, however, the oxidation peak current was markedly increased. Several parameters were studied and optimized for the development of this methodology, and under optimal conditions the oxidation peak current was proportional to TBHQ concentration in the range of (1.05-10.15) x 10(-6) mol L(-1), with limits of detection and quantification of 7.11 x 10(-8) mol L(-1) and 2.37 x 10(-7) mol L(-1), respectively, by linear sweep voltammetry (LSV). The method was applied to TBHQ determination in soybean biodiesel samples. The results were satisfactory in comparison with those obtained using high-performance liquid chromatography (HPLC).

Authors+Show Affiliations

Department of Chemistry, CCET, Universidade Federal de Mato Grosso do Sul, Av. Filinto Müller, 1555, Caixa postal 549, Campo Grande, MS 79070-900, Brazil.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20570117

Citation

de Araújo, Tatiane Alfonso, et al. "Voltammetric Determination of Tert-butylhydroquinone in Biodiesel Using a Carbon Paste Electrode in the Presence of Surfactant." Colloids and Surfaces. B, Biointerfaces, vol. 79, no. 2, 2010, pp. 409-14.
de Araújo TA, Barbosa AM, Viana LH, et al. Voltammetric determination of tert-butylhydroquinone in biodiesel using a carbon paste electrode in the presence of surfactant. Colloids Surf B Biointerfaces. 2010;79(2):409-14.
de Araújo, T. A., Barbosa, A. M., Viana, L. H., & Ferreira, V. S. (2010). Voltammetric determination of tert-butylhydroquinone in biodiesel using a carbon paste electrode in the presence of surfactant. Colloids and Surfaces. B, Biointerfaces, 79(2), 409-14. https://doi.org/10.1016/j.colsurfb.2010.05.008
de Araújo TA, et al. Voltammetric Determination of Tert-butylhydroquinone in Biodiesel Using a Carbon Paste Electrode in the Presence of Surfactant. Colloids Surf B Biointerfaces. 2010 Sep 1;79(2):409-14. PubMed PMID: 20570117.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Voltammetric determination of tert-butylhydroquinone in biodiesel using a carbon paste electrode in the presence of surfactant. AU - de Araújo,Tatiane Alfonso, AU - Barbosa,Antonio Marcos Jacques, AU - Viana,Luiz Henrique, AU - Ferreira,Valdir Souza, Y1 - 2010/05/07/ PY - 2010/01/21/received PY - 2010/04/23/revised PY - 2010/05/02/accepted PY - 2010/6/24/entrez PY - 2010/6/24/pubmed PY - 2010/10/15/medline SP - 409 EP - 14 JF - Colloids and surfaces. B, Biointerfaces JO - Colloids Surf B Biointerfaces VL - 79 IS - 2 N2 - This paper reports an electroanalytical method developed for determining the antioxidant tert-butylhydroquinone (TBHQ) in biodiesel, based on the enhancement effect of cetyltrimethylammonium bromide (CTAB). In pH 6.5 Britton-Robinson buffer, a poorly defined oxidation peak was observed for TBHQ at a carbon paste electrode (CPE). In the presence of low concentrations of CTAB, however, the oxidation peak current was markedly increased. Several parameters were studied and optimized for the development of this methodology, and under optimal conditions the oxidation peak current was proportional to TBHQ concentration in the range of (1.05-10.15) x 10(-6) mol L(-1), with limits of detection and quantification of 7.11 x 10(-8) mol L(-1) and 2.37 x 10(-7) mol L(-1), respectively, by linear sweep voltammetry (LSV). The method was applied to TBHQ determination in soybean biodiesel samples. The results were satisfactory in comparison with those obtained using high-performance liquid chromatography (HPLC). SN - 1873-4367 UR - https://www.unboundmedicine.com/medline/citation/20570117/Voltammetric_determination_of_tert_butylhydroquinone_in_biodiesel_using_a_carbon_paste_electrode_in_the_presence_of_surfactant_ DB - PRIME DP - Unbound Medicine ER -