摘要
Studies on mineral Chinese medicine Xuan Jing Shi were made by means of XRD, SEM, ICP, TG and DSC. The mineral′s phase, crystal size, surface shape, elemental content and thermal dissolution were determined. The results indicate that Xuan Jing Shi is mainly made up of CaSO_ 4·2H_ 2O. Its particle shape is slice and the particles pile up closely. The crystal size was 31.1 nm and the surface area 8.9× 10 5 cm 2/g. When heated, two water molecules were losted in one step. There are plenty of trace elements Zn, Mn, Co, Cu, Mo in Xuan Jing Shi. Above results may serve as a base for quality evaluation of the medicine.
Studies on mineral Chinese medicine Xuan Jing Shi were made by means of XRD, SEM, ICP, TG and DSC. The mineral′s phase, crystal size, surface shape, elemental content and thermal dissolution were determined. The results indicate that Xuan Jing Shi is mainly made up of CaSO_ 4·2H_ 2O. Its particle shape is slice and the particles pile up closely. The crystal size was 31.1 nm and the surface area 8.9× 10 5 cm 2/g. When heated, two water molecules were losted in one step. There are plenty of trace elements Zn, Mn, Co, Cu, Mo in Xuan Jing Shi. Above results may serve as a base for quality evaluation of the medicine.
出处
《应用化学》
CAS
CSCD
北大核心
2005年第6期676-678,共3页
Chinese Journal of Applied Chemistry
基金
江苏省科技厅自然科学基金
南京师范大学科研基金资助项目
关键词
中药
玄精石
X射线衍射
晶粒尺寸
微量元素
热分析
traditional chinese medicine,Xuan Jing Shi,X-ray powder diffraction,crystal size,trace elements,thermal analysis
