Study of the binding constants of phenolic antioxidants with surfactant/n-propanol/water systems at high percentages of alcohol by RP-HPLC

Citation
A. Aparicio et al., Study of the binding constants of phenolic antioxidants with surfactant/n-propanol/water systems at high percentages of alcohol by RP-HPLC, J LIQ CHR R, 24(4), 2001, pp. 479-496
Citations number
29
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Chemistry & Analysis","Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF LIQUID CHROMATOGRAPHY & RELATED TECHNOLOGIES
ISSN journal
1082-6076 → ACNP
Volume
24
Issue
4
Year of publication
2001
Pages
479 - 496
Database
ISI
SICI code
1082-6076(2001)24:4<479:SOTBCO>2.0.ZU;2-2
Abstract
In this work, the binding constants for five phenolic antioxidants with agg regates of cationic hexadecyltrimethylammonium bromide (CTAB) and anionic s odium dodecylsulfate (SDS) surfactants in n-Propanol at percentages higher than 20% v/v are calculated. The surfactant concentration needed to obtain aggregates in mobile phase was calculated in the presence of different n-Pr opanol percentages. The use of a multiple regression analysis allows one to obtain these consta nts at any percentage of the alcohol. The results are in very good agreemen t with the experimental data obtained in these media, taking into account t he alcohol concentration in the used equations.