Isotachophoresis of Chosen Biologically Active (E)-Azastilbenes

Autor:	Dorota Prukała, Mariusz Kluska, Krzysztof Pypowski, Ireneusz Chrząścik, Magdalena Szymalska, Wiesław Prukała
Rok vydání:	2009
Předmět:	Chromatography Conductometry Chemistry Clinical Biochemistry Pharmaceutical Science Electrolyte Biochemistry Analytical Chemistry Ion Electrophoresis Liquid crystal Electric field Isotachophoresis Antibacterial agent
Zdroj:	Journal of Liquid Chromatography & Related Technologies. 32:2193-2202
ISSN:	1520-572X 1082-6076
DOI:	10.1080/10826070903163198
Popis:	Biological activity of (E)-azastilbenes and their numerous derivatives appears in antimicrobial and anticancer effects. They also show the behavior of liquid crystals and the ability of formation of complex compounds. In this work are presented the conditions of optimum separation and determination of chosen isomers of (E)-azastilbenes by the isotachophoretic method. In the process of optimization, the length of steps of analysis, intensity (it was justified by the fact of dependence of ion mobility on electric field intensity), and pH of solutions of electrolytes and samples were changed. A new terminating electrolyte was used for the determinations. By a process of trial and error it was proven that optimum pH for analyzed isomers are 3.8. The shortest time of analysis was obtained for individual isomers. However, for mixtures of isomers the optimum time of analysis was twice as long.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::40923a3a67d77e50af9c4378c0196df6 https://doi.org/10.1080/10826070903163198 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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