Using ionic liquid combined with HPLC-DAD to analyze semi-permanent hair dyes in commercial formulations

Author(s)

Franco, Jefferson Honorio ^[1] ; Silva, Bianca F. ^[1] ; Zanoni, Maria V. B. ^[1]

Affiliation

^[1] State Univ Julio de Mesquita Filho UNESP, Inst Chem, BR-14800900 Araraquara, SP - Brazil

• Document type: Journal article
• Source: ANALYTICAL METHODS; v. 7, n. 3, p. 1115-1122, 2015.
• Web of Science Citations: 3

Abstract

Strict legislations in different countries have regulated the use of hair colorants and established the limits of dye concentration in cosmetics containing dyestuff. The present work describes a chromatographic HPLC-DAD method to determine the semi-permanent dyes basic blue 99 (BB99), acid violet 43 (AV43), basic brown 16 (BB16), basic red 76 (BR76) and basic yellow 57 (BY57) in hair coloring formulations. 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl) imide, BMIm{[}NTf2], an ionic liquid (IL) at room temperature, helped to improve the separation and quantification of low levels of basic and acidic dyes by HPLC coupled to a diode array detector. The developed method successfully identified the dyes in a commercial semi-permanent hair dyeing formulation and in drinking water. Comparison with an LC-MS/MS technique aided the validation of the results. (AU)

• FAPESP's process: 08/10449-7 - Assessment of occurrence, toxicity/genotoxicity and degradation processes of dyes in effluents and surface water
• Grantee: Maria Valnice Boldrin
• Support Opportunities: Research Projects - Thematic Grants