Naslov
Application of information theory and numerical taxonomy methods to thin-layer chromatographic investigations of Hypericum perforatum L.

Autori
Medić-Šarić, Marica ; ; Brantner, Adelheid ; Maleš, Željan

Izvornik
Acta pharmaceutica (1330-0075) 46 (1996), 2; 115-124

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Hypericum perforatum L.; thin-layer chromatography; information content; discriminating power; numerical taxonomy

Sažetak
The efficiency of nine TLC systems for separating six main components of a methanolic extract of Hypericum perforatum (St. Johns wort) was investigated. For this purpose, three mathematical approaches have been applied. The first approach was the calculation of the information content for each chromatographic system. Secondly, the discriminating power of the systems was measured individually and in diverse combinations. As a third approach the chromatographic systems were classified into dissimilar groups and of each group with similar separation characteristics the best system was selected according to the information content. The classification was carried out by the numerical taxonomy methods.

Izvorni jezik
Engleski

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