Liquid chromatography–mass spectrometry analysis of dyes formed by in situ oxidative methods then purified by absorption and extraction from hair wefts

M John Plater; Andrea Raab

doi:10.1177/1747519820978621

Liquid chromatography–mass spectrometry analysis of dyes formed by in situ oxidative methods then purified by absorption and extraction from hair wefts

M John Plater^* (Corresponding Author), Andrea Raab

^*Corresponding author for this work

Chemistry

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Abstract

The dye mixtures formed from three commercial hair colour formers were purified by absorption onto human hair wefts, washed and dried, extracted with dichloromethane: trifluoroacetic acid (75:25) and then analysed by liquid chromatography–mass spectrometry. Only 1–2 dyes were identified from each complex mixture of commercial aromatic amines along with a broad UV absorption mainly consisting of mixtures of quaternary ammonium salts from shampoos and some surfactants. Mecetronium ethyl sulfate and didecyldimethylammonium chloride were the main ammonium salts.

Original language	English
Pages (from-to)	450-461
Number of pages	13
Journal	Journal of Chemical Research
Volume	45
Issue number	5-6
Early online date	13 Dec 2020
DOIs	https://doi.org/10.1177/1747519820978621
Publication status	Published - 1 May 2021

Bibliographical note

Acknowledgements:
The authors are grateful to the Development Trust of the University of Aberdeen for funding.
Funding:
The author(s) disclosed receipt of the following financial support for the research, authorship and/or publication of this article: This work was supported by the Development Trust of the University of Aberdeen.

Keywords

hair wefts
hydrogen peroxide
phthalate
p-phenylenediamine
quaternary salt

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Plater_etal_JCR_Liquid_Chromatography_Mass_vor
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Cite this

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title = "Liquid chromatography–mass spectrometry analysis of dyes formed by in situ oxidative methods then purified by absorption and extraction from hair wefts",

abstract = "The dye mixtures formed from three commercial hair colour formers were purified by absorption onto human hair wefts, washed and dried, extracted with dichloromethane: trifluoroacetic acid (75:25) and then analysed by liquid chromatography–mass spectrometry. Only 1–2 dyes were identified from each complex mixture of commercial aromatic amines along with a broad UV absorption mainly consisting of mixtures of quaternary ammonium salts from shampoos and some surfactants. Mecetronium ethyl sulfate and didecyldimethylammonium chloride were the main ammonium salts.",

keywords = "hair wefts, hydrogen peroxide, phthalate, p-phenylenediamine, quaternary salt",

author = "Plater, {M John} and Andrea Raab",

note = "Acknowledgements: The authors are grateful to the Development Trust of the University of Aberdeen for funding. Funding: The author(s) disclosed receipt of the following financial support for the research, authorship and/or publication of this article: This work was supported by the Development Trust of the University of Aberdeen.",

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doi = "10.1177/1747519820978621",

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Liquid chromatography–mass spectrometry analysis of dyes formed by in situ oxidative methods then purified by absorption and extraction from hair wefts

Abstract

Bibliographical note

Keywords

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