Study on Thermal Analysis of Tripterygium wilfordii and Its Counterfeits
10.6039/j.issn.1001-0408.2016.30.30
- VernacularTitle:雷公藤及其伪品的热分析研究
- Author:
Jianqun LIU
;
Zhaofen YU
- Publication Type:Journal Article
- Keywords:
Tripterygium wilfordii;
Counterfeit;
Thermal analysis;
Identification;
Processing
- From:
China Pharmacy
2016;27(30):4269-4271
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To provide reference for the identification,processing,processing technology and research for ther-mal decomposition products. METHODS:Thermogravimetry- derivative thermogravimetry (TG-DTG) and differential thermal-de-rivative differential thermal (DTA-DDTA) analysis were conducted to scan thermal spectrum of tripterygium from 3 places and T. hypoglaucum,T. regelii,common counterfeits Actinidia arguta and Vitis quinquangularis,determine 7 medicinal materials,its dregs and extractum,and analyze differential spectrum of T. wilfordii and dregs. RESULTS:The TG-DTG and DTA-DDTA thermal spectrum were not only basically similar to each other but also to their dregs. There was a singlet main characteristics peak at about (299±3)℃ only in the DTG curves of extracts of tripterygium from 3 places and T. hypoglaucum extractum with similar intensity, while T. regelii,counterfeits A. arguta and V. quinquangularis showed multiple peaks,and (299 ± 3)℃ was not the main peak. CONCLUSIONS:The thermal spectrum can not distinguish tripterygium and its counterfeits;extractum DTG curves can do it;suit-able processing temperature of tripterygium was 200-380℃. The study can provide reference for the identification,processing,pro-cessing technology and research for thermal decomposition products.
