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Determination of seven preservatives in cosmetic products by micellar electrokinetic chromatography.
MedLine Citation:
PMID:  23336402     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
A micellar electrokinetic chromatography method using cetyltrimethylammonium bromide (CTAB) as a cationic surfactant, coupled with UV-Vis detection, was developed for the simultaneous determination of seven preservatives, including methyl-, ethyl-, propyl-, and butyl-paraben and phenol, phenoxyethanol, and resorcinol. The method involved optimizing the pH of the phosphate buffer and concentrations of CTAB, ethanol, and 2-hydroxypropyl-β-cyclodextrin (HP-β-CD). The preservatives were well separated using optimum conditions and separated within 10 min at a separation voltage of -12.5 kV with the 1.0 mM phosphate buffer (pH 7.0) containing 90 mM CTAB, 25 mM HP-β-CD, and 10% (v/v) ethanol. Satisfactory recoveries (84.1%-103.0%), migration time (RSD < 3.1%), and peak area (RSD < 4.5%) repeatabilities were achieved. Detection limits of the preservatives were between 0.31 and 1.52 μg mL(-1) (S/N = 3, n = 5). The optimized method was successfully applied to the simultaneous determination of these preservatives in 10 commercial cosmetic products. © 2013 Society of Cosmetic Scientists and the Société Française de Cosmétologie.
Authors:
Jun-Qiang Huang; Cho-Chun Hu; Tai-Chia Chiu
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-22
Journal Detail:
Title:  International journal of cosmetic science     Volume:  -     ISSN:  1468-2494     ISO Abbreviation:  Int J Cosmet Sci     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8007161     Medline TA:  Int J Cosmet Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2013 Society of Cosmetic Scientists and the Société Française de Cosmétologie.
Affiliation:
Department of Applied Science, National Taitung University, Taitung, Taiwan.
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