書誌事項
- タイトル別名
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- Gas Chromatographic Determination of Theobromine in Foods
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説明
Theobromine in foods was determined by gas chromatography (GC). The following procedure was used to clean up samples. The homogenized sample was boiled in alkaline aqueous media, then fat was extracted with n-hexane. The aqueous layer was acidified with diluted hydrochloric acid and sodium chloride was added. Theobromine was extracted from this treated aqueous solution with dichloromethane and the extract was evaporated to dryness. The residue was redissolved in dichloromethane containing internal standard. GC analysis was performed on a column packed with 1% cyclohexane dimethanol succinate on Gaschrom Q, with FID.<br>In this method, the average recoveries were 99-101%, the coefficient of variation was less than 3% and the limit of determination for theobromine in foods was about 0.005%.
収録刊行物
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- 食品衛生学雑誌
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食品衛生学雑誌 27 (1), 75-80_1, 1986
公益社団法人 日本食品衛生学会
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詳細情報 詳細情報について
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- CRID
- 1390001204225260288
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- NII論文ID
- 130003692643
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- ISSN
- 18821006
- 00156426
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- データソース種別
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- JaLC
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