V
Valdir Souza Ferreira
Researcher at Federal University of Mato Grosso do Sul
Publications - 73
Citations - 1485
Valdir Souza Ferreira is an academic researcher from Federal University of Mato Grosso do Sul. The author has contributed to research in topics: Voltammetry & Electroanalytical method. The author has an hindex of 21, co-authored 70 publications receiving 1224 citations. Previous affiliations of Valdir Souza Ferreira include Universidade Federal de Goiás & Sao Paulo State University.
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Journal ArticleDOI
A new voltammetric method for the simultaneous determination of the antioxidants TBHQ and BHA in biodiesel using multi-walled carbon nanotube screen-printed electrodes
Ricardo Pini Caramit,Adriana Garabini de Freitas Andrade,João Batista Gomes de Souza,Tatiane Alfonso de Araujo,Luiz Henrique Viana,Magno Aparecido Gonçalves Trindade,Valdir Souza Ferreira +6 more
TL;DR: An electroanalytical method for the simultaneous detection and quantification of tert -butylhydroquinone (TBHQ) and butyl hydroxyanisole (BHA) in biodiesel was developed using a voltammetric technique and screen-printed electrodes as mentioned in this paper.
Journal ArticleDOI
Biomonitoring of methomyl pesticide by laccase inhibition on sensor containing platinum nanoparticles in ionic liquid phase supported in montmorillonite
Eduardo Zapp,Daniela Brondani,Iolanda Cruz Vieira,Carla W. Scheeren,Jairton Dupont,Antonio Marcos Jacques Barbosa,Valdir Souza Ferreira +6 more
TL;DR: In this article, a new biosensor for the determination of the pesticide methomyl, based on enzyme inhibition, was developed and evaluated, and the best experimental conditions were obtained in acetate buffer solution (0.1 mol l−1, pH 5.5), with 0.5 ǫ units of enzyme and voltammetric parameters.
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Electroanalytical determination of TBHQ, a synthetic antioxidant, in soybean biodiesel samples
Tatiane Alfonso de Araujo,Antonio Marcos Jacques Barbosa,Luiz Henrique Viana,Valdir Souza Ferreira +3 more
TL;DR: In this paper, an electroanalytical method was developed for tert-butylhydroquinone (TBHQ) determination in biodiesel in the presence of surfactant Triton X-100 (T-100).
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Electroanalytical Determination of Lidocaine in Pharmaceutical Preparations Using Boron‐Doped Diamond Electrodes
R.T.S. Oliveira,Giancarlo R. Salazar-Banda,Valdir Souza Ferreira,Sílvio C. de Oliveira,Luís Alberto Avaca +4 more
TL;DR: In this paper, a new electroanalytical procedure was developed for the determination of lidocaine in commercial local anesthetics products containing lidocaine as the active ingredient, based on the use of electrochemical methods as cyclic and square wave voltammetry, with boron-doped diamond electrodes.
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Electroanalytical tools for antioxidant evaluation of red fruits dry extracts.
Isaac Yves Lopes de Macêdo,Luane Ferreira Garcia,Jerônimo Raimundo de Oliveira Neto,Karla Carneiro de Siqueira Leite,Valdir Souza Ferreira,Paulo César Ghedini,Eric de Souza Gil +6 more
TL;DR: The voltammetric profile obtained for each type of dried extract showed distinguishable features that were correlated with their main major markers, being also useful for identification purposes.