Quantitative determination of phenol derivatives fromOleum thymi

被引：0
作者：
A. Bazylko
H. Strzelecka
机构：
[1] University of Medicine,Department of Pharmacognosy, Faculty of Pharmacy
来源：
Chromatographia | 2000年 / 52卷
关键词：
Thin-layer chromatography; Densitometry; Thymol, carvacrol and phenol derivatives from;
D O I：
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中图分类号：
学科分类号：
摘要：
The thymol and carvacrol content inOleum Thymi was determined by densitometry. Phenols were separated on a thin—layer of silica gel using two-step gradient elution. The dependence of measurement time on the amount of phenols was investigated. For comparison, the total phenolic content of the essential oil was also determined by colorimetry, the results indicating that the optimal measurment time at which the following measurements should be performed, is 5 min after the end of heating.
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页码：112 / 114
页数：2
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