1.Study on the Content of Hydrochloric Harmine and Heat Stability of Harmine Gelatin Microspheres
Youwu WENG ; Yan LI ; Dianjia SUN
China Pharmacy 1991;0(01):-
0.05) in surface HM;however,the total content obtained from RP-HPLC was smaller.The pyrolytic activation energy was 93.37kJ/mol,frequency factor was 2.304?1013/min.CONCLUS_ION:UV-spectrophotometry is more simple and RP-HPLC is more precise in detection.HM-GMS is considerably heat-stable.
2.Study on Stability of Qingrejiedu Granules
Dianjia SUN ; Liang TENG ; Jianguo XING ;
Chinese Traditional Patent Medicine 1992;0(03):-
Objective: To evaluated the granules stabilities in four conditions by taking the change of Baricalin content and granules surface color as stability test markers. Methods: The content of baicalin was determined by dual wave length iso absortion method and the granules surface color was determined by the diffuse reflectrance spectroscopy. ① The granules were tested in a simulated summer environment (30 ?C , RH92.5%, 1month) and in a high intensity light condition (3000LX, 10dyas). ② The influence of humidity on the stability of the granules was investigated. ③ The expiry date of the granules was predicted by the mutivariate linear regression analysis and compared with the result of the classical constant temperature method. ④ The influences of temperature and humidity on the granules stability were etudied by orthogonal test. Results: ① There was hardly any change in baicalin content of samples in a simulated summer environment and in a high intensity light condition. ② The results showed that the decrease of baicalin content and charge of granules color were obvious when the relative humidity of environment was high and the granules color was more easily influenced by the humidity. ③ The expiry date was about 2.87 years. ④ The results indicated that both temperature and humidity had effects on the change of baicalin content. Conclusion: We tried to estimate the stability of the granules by two indexes. The results showed that Qingrejedu granules was stable in different conditions. It satisfied the stability requirements of solid dosage form.
3.Prescription Selecting of Harmine. HCl Ointment
Jianguo XING ; Dianjia SUN ; Hui GUAN ; Shuangquan WANG ; Yaohong KOU
Chinese Traditional Patent Medicine 1992;0(05):-
Objective: To select the prescription of Harmine HCl ointment. Methods: The orthogonal design was used for selecting the prescription with transdermal absorption rate constant (K) and flow energy of activition (E ?) as selecting standard. Results: The optimum prescription is as follows: Azone (2.0%), Span-80 ( 0.2%), Tweens-80 (0.4%), Glycerylmonostearate (2.5%), Vaselin (4.0%), Liquid (11%). Conclusion: The prescription design is available, and the ointment has a good stability.
4.Study on extracting process and formulation of Mashi Granules
Jun LI ; Dianjia SUN ; Jiaguo LIU ; Lisha ZHU ; Liang TENG ;
Chinese Traditional Patent Medicine 1992;0(10):-
Objective: To ascertain the process condition of extraction Mashi Granules(Herba Ephedrae, Gypsum Fibrosum, Radix Puerariae, Herba Methal, Semen Armeniacae Amerum, etc.) Methods: In combination with area under the curve of hypothermy in rabbits, process water, macerating time and boiling times were used as parameters in uniformidy design. And then appropriate excipients were selected on the basis of hygroscopicity and granulation. Results: 20 times amount of water as much as herbs was added, macerating time reached as far as 40 min, and extracted 3 times, 2h a time. Excipient formula consisted of lactose and mannitol(4∶1, w/w). Conclusion: The experimental results provide the basis for the ascertainment of extracting process and formulation of Mashi Granules.
5.Analysis of Saussurea involucrata Kar. et Kir.from different sources by HPLC-FPS
Aidong MIAO ; Dianjia SUN ; Yan PEN ; Benfu WANG ; Hui HU ; Guoqiang ZHOU ;
Chinese Traditional Patent Medicine 1992;0(09):-
Objective:To study comparatively HPLC FPS of seven kinds of snowlotus, Saussurea involucrata Kar. et Kir. from different sources of Xinjian area. Methods: HPLC fingerprint analytical method of Snowlotus, from Urumqi was developed, and the HPLC FPS of seven samples were established. Results: The methodological evaluation showed that this method had a good repeatability, and the ratio of common peaks area of different samples were different. Conclusion: The method can be used to distinguish Snowlotus from different sources conveniently.