SEPARATION OF TOAD POISON BUFADIENOLIDES BY HYDROPHOBIC GEL
作者:
Yoshiaki Kamano,
Toshihiko Nogawa,
Ayano Kotake,
Machiko Tozawa,
G.R. Pettit,
期刊:
Journal of Liquid Chromatography & Related Technologies
(Taylor Available online 1999)
卷期:
Volume 22,
issue 16
页码: 2455-2465
ISSN:1082-6076
年代: 1999
DOI:10.1081/JLC-100101814
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
We have examined the column chromatography using hydrophobic gel carriers, Sephadex LH-20 and HP-Cellulofine, for separation of ten toad poison bufadienolides: resibufogenin, cinobufagin, bufalin, bufotalin, cinobufotalin, telocinobufagin, desacetyl-cinobufagin, desacetyl-bufotalin, desacetyl-cinobu-fotalin, and gamabufotalin (Figure 1). As a result, the use of developing solvents such as n-hexane/CH2Cl2/MeOH(4:5:1), n-hexane/CHCl3/MeOH(4:5:1), and n-hexane/toluene/ MeOH (3:2:1) provided the effective separation of bufadienolides. For separation, we have established the flow speed of developing solvents and the relationship of separation with the diameter and length of column, in addition to the comparison of separation by Sephadex LH-20 and HP-Cellulofine and the relationship with silica gel thin-layer chromatography. Also, we have tested the separability of hydrophobic gel by repeated use and the recovery of bufadienolides on hydrophobic gel column by repeated use.
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