抄録
The determination of dibenzoylthiamine (DBT) enriched to food is very difficult because of its low solubility in the various solvents. The authors found that DBT is extremely soluble in 70% alcoholic 0.1 N hydrochloric acid solution. This fact was effectively applied to the practical extraction method of DBT, fortified to several foodstuffs. The extracted DBT in alcoholic hydrochloric acid solution was hydrolyzed with alkali, and then determined fluorometrically by modified thiochrome method with BrCN oxidation.
