Xia Zhen-jiang, Wei Li-xin, Wang Dong-ping, Du Yu-zhi, Chen Xian-min, Yang Hong-xia
Northwest Plateau Institute of Biology, Chinese Academy of Sciences/Qinghai Key Laboratory of Tibet Medicine Pharmacology and Satety Evaluation, Xining 810008, China.
Zhong Yao Cai. 2010 May;33(5):688-90.
To establish the method of quality control for traditional Tibetan Medicine Zsuotai.
Collecting the samples of Tsuotai from Qinghai, Tibet, Sichuan, and Gansu province, to detect Hg2+ by Zsuotai reacted with HCl-HNO3 (3:1), and to determine the quantity of HgS in Zsuotai by sulfocyanate volumetric method.
The method for the determination of HgS in Zsuotai was in good reproducibility (RSD = 0.68%). The calibration curve was linear (r = 0.9999) within -0.0002 - 0.2123 g of mercuric sulfide. The recovery was 100.94% (RSD = 0.66%).
This method is convenient and accurate, so it can be used to establish quality control of the medicinal material.
建立藏药坐台的质量控制方法。
收集青海、西藏、四川、甘肃等地的坐台样品，采用坐台与盐酸-硝酸（3:1）反应检测汞离子，并采用硫氰酸盐容量法测定坐台中硫化汞的含量。
坐台中硫化汞的测定方法重现性良好（RSD = 0.68%）。在硫化汞含量为-0.0002 - 0.2123 g范围内，校准曲线呈线性（r = 0.9999）。回收率为100.94%（RSD = 0.66%）。
该方法简便、准确，可用于建立该药材的质量控制。
