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Liquid Chromatography of Adenine, Caffeine, Theobromine, Theophylline, Tannic Acid, Xanthine and its Application to Tea Analysis
Author(s) -
Hsu TongJung,
Liao ChiChow,
Chen MeiYun
Publication year - 1978
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.197800026
Subject(s) - theobromine , chemistry , caffeine , theophylline , xanthine , tannic acid , chromatography , column chromatography , elution , ethanol , biochemistry , organic chemistry , pharmacology , medicine , enzyme , endocrinology
A polystyrenesulfonic acid resin in the hydrogen form is a useful stationary phase for chromatographic separation of adenine, caffeine, theobromine, theophylline, tannic acid, xanthine and tea components with aqueous ethanol as eluent. The results indicated that caffeine, theophylline, theobromine, adenine, xanthine and tannic acid could be separated on a column of Dowex‐50W‐X8(H) + by elution with 25% ethanol as eluent.