Coffeinbestimmung durch Gelchromatographie View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1975-09

AUTHORS

Svatopluk Pokorný, Jiří Čoupek, Phan-trong Tai, Jan Pokorný

ABSTRACT

Caffeine in beverages was determined by gel chromatography after extraction with chloroform from an alkalized sample. For extract from coffee, tea and matè a very good agreement was observed between the chromatographic method used and the method of Navellier et al. Major departures were observed for decaffeinized coffee and some beverages of the cola type, where gel chromatography was more selective and caffeine separated from impurities stripped into the extract. The reproducibility of determination corresponded to the standard method (standard deviation 4.2%). More... »

PAGES

43-46

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf01089879

DOI

http://dx.doi.org/10.1007/bf01089879

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1028784361

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/1202839


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