YAKUGAKU ZASSHI
Online ISSN : 1347-5231
Print ISSN : 0031-6903
ISSN-L : 0031-6903
タンニン生薬に関する研究 (第7報)
阿仙薬中のd-カテキンの比色定量
木村 康一里見 幸重桑野 重昭
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1958 年 78 巻 4 号 p. 325-329

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Colorimetric determination of d-catechin with vanillin-hydrochloric acid reagent was carried out. Successful separation of d-catechin and Gambir tannin was effected by paper chromatography, from which d-catechin was eluted out with methanol and submitted to determination. By this means, sum of content of d-catechin and that of its optical isomers was obtained as expressed by d-catechin value.

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© by the PHARMACEUTICAL SOCIETY OF JAPAN
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