差热-热重联用法鉴别金银花的研究

Study on identification of honeysuckle by TG-DAT method

对不同产地、不同等级的金银花进行了差热-热重分析,6种样品的差热和热重曲线均有差别。根据样品的差热热重曲线,将河北一等和二等、河南一等和二等及山东一等和二等金银花6个样品加以鉴别。该方法简便,可用于鉴别该类植物中药材的产地及真伪。

The honeysuckle of different producing areas and of different qualities are analyzed by TG-DAT method. There are some differences for the six kinds of samples on the TG-DAT curves. Five samples including the first-class and second-class of Hebei, Henan and Shandong can be distinguished respectively acording to TG-DAT curves. In addition there is obvious differ- ences between first-class and second-class of Henan. The Honeysuckle of a certainproducing area and quality is differentiated simply and rapidly by using the method.