| Full text | |
| Author(s): |
Total Authors: 3
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| Affiliation: | [1] State Univ Julio de Mesquita Filho UNESP, Inst Chem, BR-14800900 Araraquara, SP - Brazil
Total Affiliations: 1
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| 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 |