Identification of organic colourants in cosmetics by HPLC-diode array detection
| Autor: | S. C. Rastogi, V. J. Barwick, S. V. Carter |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
diode array detection
UV-visible spectral library Chromatography genetic structures cosmetics Chemistry Tetrabutylammonium hydroxide media_common.quotation_subject Organic Chemistry Clinical Biochemistry Extraction (chemistry) solid phase extraction Biochemistry High-performance liquid chromatography Cosmetics Analytical Chemistry chemistry.chemical_compound Reagent column liquid chromatography Sample preparation Solid phase extraction Acetonitrile colourants media_common |
| Zdroj: | Rastogi, S C, Barwick, V J & Carter, S V 1997, ' Identification of Organic Colourants in Cosmetics by HPLC-Diode Array Detection ' Chromatographia, vol. 45, pp. 215-228 . |
| ISSN: | 1612-1112 0009-5893 |
| DOI: | 10.1007/bf02505563 |
| Popis: | A method for the analysis of organic cosmetic colourants was developed. The colourants extracted from the cosmetic products were analysed by HPLC followed by diode-array detection across the wavelength range 275 nm–760 nm. The chromatographic separation was performed on a column with a polymeric packing using gradient elution with a mobile phase composed of citrate buffer, the ion-pairing reagent tetrabutylammonium hydroxide, acetonitrile and tetrahydrofuran. The colourants were identified on the basis of their retention times as well as their UV-visible spectra. A spectral library consisting of retention times and UV-visible spectra of 130 organic cosmetic colourants has been built for the purpose of identifying of colouring matter in cosmetic products. Solid-phase extraction methods using C-18 silica and aminobonded silica have been developed for the extraction of colourants from various types of cosmetic products. The method for the identification of colourants in nail varnishes and lipsticks has been optimized for routine analysis. |
| Databáze: | OpenAIRE |
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