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The lipophilicity of artificial and natural sweeteners estimated by reversed-phase thin-layer chromatography and computed by various methods

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Rodica Domnica Briciu , Agata Kot-Wasik, Andrzej Wasik, Jacek Namiesnik, Costel Sârbu

Editorial: Journal of Chromatography A, 1217, p.3702-3706, 2010.

Rezumat:

The chromatographic behavior of some artificial and natural sweeteners was established by reverse phase
high performance thin-layer chromatography (RP-HPTLC) on RP-18, RP-18W, RP-8, CN and NH2 stationary
phases. The mobile phases were mixtures of acetonitrile–water in different proportions of volume,
chosen to create a suitable migration during the chromatographic process. The lipophilicity was described
through different chromatographic descriptors such as RM0, mean of RM (mRM), and scores of RM values
corresponding to the first principal component (PC1/RM). In addition, scores and loadings resulting from
covariance matrix of retention data enable new information about similarity and differences of investigated
compounds and between both the stationary and mobile phases. The experimental lipophilicity
indices estimated from retention data are directly correlated with the computed values, via computer
software and internet module, at a high significant statistical level.

Cuvinte cheie: Sweeteners. RP-HPTLC, Lipophilicity indices, Computed log P, PCA

URL: http://www.sciencedirect.com/science/article/pii/S0021967310004577