Determination of catechin and epicatechin in an extract from Uncaria tomentosa bark by TLC with chemically modified stationary phases

被引：0
|
作者：
Fecka, I
Cisowski, W
Luczkiewicz, M
机构：
[1] Wroclaw Med Univ, Dept Pharmacognosy, PL-50140 Wroclaw, Poland
[2] Gdansk Med Univ, Dept Pharmacognosy, PL-80416 Gdansk, Poland
来源：
JPC-JOURNAL OF PLANAR CHROMATOGRAPHY-MODERN TLC | 2001年 / 14卷 / 06期
关键词：
catechin; epicatechin; SPE-HPTLC; Uncaria tomentosa;
D O I：
10.1556/JPC.14.2001.6.2
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The conditions used for TLC and HPTLC analysis of catechins have been optimized. Chemically modified stationary phases (HPTLC CN, HPTLC NH2, and HPTLC RP-18W) were used for qualitative examination of polyphenol fractions obtained by an SPE-RP 18 method from Uncaria tomentosa bark. Although the best separation of catechin from epicatechin was achieved on octadecyl plates, silica gel plates are good enough for preliminary investigations of crude plant extracts.
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页码：405 / 408
页数：4
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