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标题：Paper Chromatography of Anthraquinone Pigments. (2)
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作者：Michio Takido
期刊名称：Chemical and Pharmaceutical Bulletin
印刷版ISSN：0009-2363
电子版ISSN：1347-5223
出版年度：1956
卷号：4
期号：1
页码：45-48
DOI：10.1248/cpb1953.4.45
出版社：The Pharmaceutical Society of Japan
摘要：The paper chromatography of anthraquinone pigments was studied employing five different solvent systems : a) Petroleum benzine saturated with 97% methanol, b) the upper layer of a mixture of petroleum ether-acetone-water (1 : 1 : 3), c) the lower layer of a mixture of acetone-benzene-water (1.5 : 2 : 1), d) petroleum ether saturated with water, and e) butanol saturated with 28% NH₄OH. The relationship between the disposition of substituents in the anthraquinone ring and the Rf values was also discussed.