摘要
目的:确定花蕊石主要物相、含量及热稳定性,提供合适的炮制处理温度及常见微量元素含量。方法:应用X射线衍射(XRD)、热重-差示扫描(TG-DSC)、等离子发射光谱(ICP)分析测试技术和JADE定量分析应用软件。结果:花蕊石的主要物相为CaCO3,随产地不同还含有滑石、透辉石、白云母等次要物相;除主要元素Ca、Fe、Al、Mg、K外,还含有Cu、Ni、Na、Pb、Cr、Mn等微量元素,花蕊石在599℃之前是稳定的,而从599时开始分解失重直到900℃。结论:不同来源花蕊石的主成分相同,次成分有一定差别。花蕊石的热稳定性较好,599-900℃温度区间实际上是其中的CaCO3分解失重,但是还应控制花蕊石煅烧的温度。实验结果为该矿物的鉴定和评价提供了科学数据。
Objective： To determine the contents of major phase and the thermal stability of Ophicalcitum, providing the contents of the common trace elements and the concocted processing temperature. Method： The analysis test technology of XRD TG-DSC ICP and the JADE application software were used. Result： Ophicalcitum is mainly made up of CaCO3, but the secondary phase varies with the origin of the medicine, such as Talc Diopside Muscovite; it mainly contains elements of Ca Fe Al Si Mg K, and also contains trace elements of Cu Ni Na Pb Cr Mn.When heated, it is stable before 599℃ and begins to lose weight from 599 to 900℃. Conclusion： With different origins, the main composition of Ophicalcitum is same and sub-components have some differences. Ophicalcitum is thermal stability and lost weight in the range of 599-900℃ is in fact the decomposition of CaCO3, but the calcination temperature of Ophicalcitum should he controlled. The results may provide basis for quality evaluation of the medicine.
出处
《科技视界》
2012年第25期24-26,357,共4页
Science & Technology Vision
基金
江苏省高校自然科学基金研究计划(No.05KJD350113)
江苏省生物医药材料测试服务平台资助项目(No.BM2007132)
关键词
花蕊石
X射线粉末衍射
热分析
微量元素
Ophicalcitum
X-ray powder diffraction
Thermal analysis
Trace element
