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Simultaneous Determination of Theobromine, Theophylline and Caffeine in Foods by High Performance Liquid Chromatography
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- FUKUHARA Katsuharu
- Hatano Research Institute, Food and Drug Safety Center
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- MATSUKI Yasuhiko
- Hatano Research Institute, Food and Drug Safety Center
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- NANBARA Toshio
- Pharmaceutical Institute, Tohoku University
Bibliographic Information
- Other Title
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- 高速液体クロマトグラフィーによる食品中のテオブロミン, テオフィリン及びカフェインの同時分析法
- コウソク エキタイ クロマトグラフィー ニ ヨル ショクヒンチュウ ノ テオブ
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Description
A method for the simultaneous determination of theobromine, theophylline and caffeine in several kinds of foods is described.<br>The chromatographic separation of the three compounds was achieved on FLC-ODS employing water-acetonitrile (150:10) as the mobile phase. The methylxanthines in tea and coffee were extracted with water and in turn the aqueous layer was extracted with chloroform. Clean-up of these compounds in cocoa and chocolate was efficiently attained by extracting them with water in the presence of carbon tetrachloride.<br>The recovery rates of standard samples added to foods were 88-96%.
Journal
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- Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi)
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Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 26 (2), 208-212_1, 1985
Japanese Society for Food Hygiene and Safety
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Keywords
Details 詳細情報について
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- CRID
- 1390282679201771136
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- NII Article ID
- 130003692554
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- NII Book ID
- AN00117741
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- ISSN
- 18821006
- 00156426
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- NDL BIB ID
- 3037124
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
- OpenAIRE
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- Abstract License Flag
- Disallowed