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Chromatographic and electroanalytical methods applied in determination of p-toluenediamine and p-aminophenol in oxidative medium used in permanent hair dye.

Grant number: 15/12998-1
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): April 01, 2016
Effective date (End): March 31, 2020
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal Investigator:Maria Valnice Boldrin
Grantee:João Carlos de Souza
Host Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
Associated scholarship(s):18/12449-6 - Study of the electrochemical behavior of keratin and its interaction with p-toluenediamine and p-aminophenol and their oxidation products mimicking reactions of permanent hair dye, BE.EP.DR

Abstract

The permanent dyeing of hair is a process adopted by millions of people worldwide, and involves complex oxidative reactions between precursor agents and couplers in medium alkaline oxidant inside the hair. The project proposes to improve understanding of these reactions, investigating the reaction between p-toluenediamine and p-aminophenol as models of compounds of permanent dyes for chromatographic techniques with mass detector and spectrophotometry in the UV-VIS region. It is also our proposal to seek new analytical methodologies for the determination of these compounds and its derivatives in hairdressing salons wastewater and water abstraction in water treatment stations using electrochemical sensors and high-performance liquid chromatography coupled with electrochemical detector. For this it is intended to exploit the policysteine and keratine as an example of modifiers in gold electrodes and printed electrodes grapheme, respectively, since both are basic constituents of the hair.

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Scientific publications (8)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DE SOUZA, JOAO CARLOS; DA SILVA, BIANCA FERREIRA; MORALES, DANIEL ALEXANDRE; UMBUZEIRO, GISELA DE ARAGAO; BOLDRIN ZANONI, MARIA VALNICE. Assessment of the autoxidation mechanism of p-toluenediamine by air and hydrogen peroxide and determination of mutagenic environmental contaminant in beauty salon effluent. Science of The Total Environment, v. 685, p. 911-922, . (15/12998-1, 14/03679-7)
BESSEGATO, GUILHERME GARCIA; DE SOUZA, JOAO CARLOS; CARDOSO, JULIANO CARVALHO; BOLDRIN ZANONI, MARIA VALNICE. Assessment of several advanced oxidation processes applied in the treatment of environmental concern constituents from a real hair dye wastewater. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, v. 6, n. 2, p. 2794-2802, . (14/03679-7, 15/18109-4, 15/12998-1)
DE SOUZA, JOAO CARLOS; DA SILVA, BIANCA FERREIRA; MORALES, DANIEL ALEXANDRE; UMBUZEIRO, GISELA DE ARAGAO; BOLDRIN ZANONI, MARIA VALNICE. Assessment of p-aminophenol oxidation by simulating the process of hair dyeing and occurrence in hair salon wastewater and drinking water from treatment plant. JOURNAL OF HAZARDOUS MATERIALS, v. 387, . (14/50945-4, 15/18109-4, 15/12998-1, 08/10449-7)
DE SOUZA, JOAO CARLOS; DA SILVA, BIANCA FERREIRA; MORALES, DANIEL ALEXANDRE; UMBUZEIRO, GISELA DE ARAGAO; BOLDRIN ZANONI, MARIA VALNICE. Assessment of the compounds formed by oxidative reaction between p-toluenediamine and p-aminophenol in hair dyeing processes: Detection, mutagenic and toxicological properties. Science of The Total Environment, v. 795, . (14/50945-4, 15/12998-1)
DE SOUZA, JOAO CARLOS; DA SILVA, JOSE LUIZ; FABRAO, RODRIGO MONTEIRO; STRADIOTTO, NELSON RAMOS; BOLDRIN ZANONI, MARIA VALNICE. Electroactive sugars, organic acids and sugar alcohol analysis in wine using anion-exchange chromatography with electrochemical detection. Microchemical Journal, v. 147, p. 972-978, . (14/03679-7, 15/12998-1)
CORREA, GLAUCIA TINOCO; DE SOUZA, JOAO CARLOS; SILVA, JOAO PEDRO; PIVIDORI, MARIA ISABEL; BOLDRIN ZANONI, MARIA VALNICE. Determination of temporary dye Basic Red 51 in commercial hair dye, river water and wastewater from hairdressing salon using graphite-epoxy composite electrode modified with magnetic nanoparticles. Microchemical Journal, v. 159, . (13/21542-6, 15/12998-1, 14/50945-4)
DE SOUZA, JOAO CARLOS; BOLDRIN ZANONI, MARIA VALNICE; OLIVEIRA-BRETT, ANA MARIA. Genotoxic permanent hair dye precursors p-aminophenol and p-toluenediamine electrochemical oxidation mechanisms and evaluation in biological fluids. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, v. 857, . (14/50945-4, 18/12449-6, 15/12998-1)

Please report errors in scientific publications list by writing to: cdi@fapesp.br.