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Analysis of heptakis(2,6-di-O-methyl)-β-cyclodextrin by thin-layer, high-performance liquid and gas chromatography and mass spectrometry

✍ Scribed by Kyoko Koizumi; Yōko Kubota; Toshiko Utamura; Shizuyo Horiyama


Book ID
108335302
Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
569 KB
Volume
368
Category
Article
ISSN
1873-3778

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Gas phase isomeric differentiation of ol
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## Abstract Oleanolic acid (OA) and ursolic acid (UA) are isomeric triterpenoid compounds with similar pharmaceutical properties. Usually, modern chromatographic and electrophoretic methods are widely utilized to differentiate these two compounds. Compared with mass spectrometric (MS) methods, thes