藏药矾石化学成分与结构分析

doi:10.3964/j.issn.1000-0593(2012)01-0248-04

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摘要：采用X射线荧光(XRF)、等离子体发射光谱(ICP-OES)和X射线衍射(XRD)等方法对不同来源藏药矾石的化学成分和结构组成进行分析。XRF和ICP-OES 分析表明，藏药矾石主要元素为Ca，O和C，还含有少量Mg，Al，Na，Si，K，Ag，Ba，Fe，Mn，S，Sr，Zn等元素。XRD结构分析表明，其体系中主要存在三方晶系(Mg_xCa_1-x)CO₃ (空间群为R-3c)或三方晶系CaCO₃ (空间群为R-3c)，此外还含有少量的斜方晶系CaCO₃(空间群为Pmcn)和六方晶系SiO₂ (空间群为P3221)等物相。通过X射线荧光、等离子体发射光谱和X射线衍射等分析，获得了藏药矾石元素成分和结构组成数据，为其物质基础的揭示和质量标准的制定提供了科学依据。

关键词：矾石;曲吉日道;佐太;晶系;X射线荧光;等离子体发射光谱;X射线衍射

Abstract：The element and microstructure of Tibetan medicine Fanshi were investigated, in order to explore the material basis of Fanshi. X-ray fluorescence spectroscope (XRF), inductively coupled plasma optical emission spectrometer (ICP-OES) and X-ray diffraction (XRD) were used to assay the Fanshi samples from different Tibetan regions. XRF and ICP-OES analysis show that the main elements in Fanshi are Ca, O and C, but also contain some kinds of minor elements, such as Mg, Al, Na, Si, K, Ag, Ba, Fe, Mn, S, Sr, Zn and so on. XRD analysis shows that the main material structures in Fanshi are (Mg_xCa_1-x)CO₃ (rhombohedral, R-3c) and CaCO₃(rhombohedral, R-3c), but also exists a small quantity of CaCO₃(orthorhombic, Pmcn), SiO2 (hexagonal, P3221), etc. The data of element and structure in Tibetan medicine Fanshi have been acquired by XRD, ICP-OES and XRD, and that is beneficial to exploring the material basis of Fanshi.

Key words：Fanshi;Qujiridao;gTSo thal;Crystal system;XRF;ICP-OES;XRD

收稿日期: 2011-03-30 修订日期: 2011-07-15

中图分类号:

O657.3

通讯作者: 魏立新 E-mail: lxwei@nwipb.ac.cn

引用本文:

李岑¹，楞本才让²，桑老²，贡布东智²，杜玉枝¹，魏立新^1* . 藏药矾石化学成分与结构分析[J]. 光谱学与光谱分析, 2012, 32(01): 248-251.
LI Cen¹, Lengbencairang², Sanglao², Gongbudongzhi², DU Yu-zhi¹, WEI Li-xin^1* . The Chemical and Structural Analysis of Tibetan Medicine Fanshi . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(01): 248-251.

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https://www.gpxygpfx.com/CN/10.3964/j.issn.1000-0593(2012)01-0248-04 或 https://www.gpxygpfx.com/CN/Y2012/V32/I01/248