| Autor: |
Hawrył, Mirosław A., Soczewiński, Edward |
| Zdroj: |
Journal of Planar Chromatography - Modern TLC; Dec2001, Vol. 14 Issue 6, p415-421, 7p |
| Abstrakt: |
Summary: Two-dimensional thin layer chromatography of twelve flavonoids and three phenolic acids from Betula sp. leaves has been performed in normal-phase systems. Plots showing the dependence of RM on modifier concentration in some non-aqueous systems were used to optimize the chromatographic separation. RM values were correlated for all the chromatographic systems investigated and optimum pairs of systems were then selected for use in two-dimensional TLC separations. Complete separation of the compounds investigated was achieved by use of two optimum non-aqueous mobile phases on silica plates. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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