Separation and authentication of tilianin and quality standards of semen of Dracocephalum moldavia / 中国中药杂志
China Journal of Chinese Materia Medica
; (24): 1845-1849, 2015.
Article
in Zh
| WPRIM
| ID: wpr-351252
Responsible library:
WPRO
ABSTRACT
Tilianin was separated and authenticated from the seeds of Dracocephalum moldavia, a Uygur medicine, by chromatographic technique and spectroscopic method. The purity of tilianin is more than 98% determined by HPLC area normalization method. Thin layer chromatography (TLC) method was used to separate tilianin from D. moldavia by mixture of chloroform-methanol (5 1) as a developing solvent on high performance silicagel precoated plate (SGF254) and using aluminium trichloride as a chromogenic agent for qualitative identification of D. moldavia. To establish a HPLC method for quantitative analysis of D. moldavia, tilianin was used as a Quantitative marker and separated on a C18 (4.6 mm x 250 mm, 5 μm) column with acetonitrile-01% formic acid (25 75) as the mobile phase and detected at 330 nm. The calibration curve of tilianin displayed ideal linearity over the range of 0.617 2-123.44 μg x mL(-1) with a regression equation of Y = 33.773X - 0.824 8 (r = 1). The average recovery of tilianin was 101.0% with RSD of 3.7%. The RSD values of intra-day and inter-day precision were less than 2%. The content of tilianin in 4 batches of the authenticated semen of D. Moldavia was between 0.016 and 0.187 mg x g(-1). The qualitative and quantitative method established is suitable for the quality evaluation and assessment of semen of D. Moldavia.
Full text:
1
Database:
WPRIM
Main subject:
Quality Control
/
Reference Standards
/
Flavonoids
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Drugs, Chinese Herbal
/
Magnetic Resonance Spectroscopy
/
Chemistry
/
Chromatography, High Pressure Liquid
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Chromatography, Thin Layer
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Lamiaceae
/
Glycosides
Type of study:
Qualitative_research
Language:
Zh
Journal:
China Journal of Chinese Materia Medica
Year:
2015
Document type:
Article