METHODS The powder X ray diffraction analysis was used by spectrum X ray diffraction analysis. The characteristic marked peaks of talcum was found for identification.
方法应用粉末X射线衍射方法，对取自我国主要滑石产区的药用滑石粉样品进行衍射研究（衍射图谱分析及特征标记峰鉴别）。
METHODS The powder X ray diffraction analysis was used by spectrum X ray diffraction analysis. The characteristic marked peaks of talcum was found for identification.
方法应用粉末X射线衍射方法，对取自我国主要滑石产区的药用滑石粉样品进行衍射研究（衍射图谱分析及特征标记峰鉴别）。
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