1.
Biomed Chromatogr
; 8(3): 145-7, 1994.
Article
in English
| MEDLINE
| ID: mdl-8075525
ABSTRACT
Determination of 4(3H)-quinazolinone, a newly found antiviral and immunopatentiating constituent was proposed as a method of evaluating the quality of two antiviral Chinese herbal drugs Daqingye (Folium Strobilanthis) and Banlangen(Radix Strobilanthis) and their preparations ('Antipyretic and common cold granules', 'Banlangen granules'). An HPLC method for determining the content of 4(3H)-quinazolinone was established with satisfactory results. The method showed good linearity (r = 0.9998, n = 5) in the range of 0.25-50 micrograms/mL of 4(3H)-quinazolinone, the average recovery was above 99% with RSD < 0.78% (n = 3).
Subject(s)
Chromatography, High Pressure Liquid/methods , Drugs, Chinese Herbal/standards , Chromatography, High Pressure Liquid/statistics & numerical data , Drugs, Chinese Herbal/analysis , Quinazolines/analysis , Quinazolinones , Regression Analysis , Reproducibility of Results
2.
Zhong Xi Yi Jie He Za Zhi
; 6(2): 90-2, 68, 1986 Feb.
Article
in Chinese
| MEDLINE
| ID: mdl-2425992