生薬の無機化学的品質評価法に関する研究 : (1)鉱物生薬のICP発光分析法による品質評価

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Quality evaluation of two mineral natural medicines: "Ryukotsu (Longgu, Fossilia ossis mastodi)" and "Sekkou (Gypsum, Gypsum fibrosum)", and one animal natural medicine: "Borei (Oyster shell, Ostreae testa)" was studied through the analysis of inorganic constituents. First, each sample was confirmed by X-ray diffractometry, thermal analysis and X-ray fluorescence spectrometry. Next, the determination of inorganic elements in each sample was performed by inductively coupled plasma-atomic emission spectrometry (ICP-AES). ICP-AES was a powerful tool for the determination of inorganic elements content in "Ryukotsu", "Sekkou" and "Borei". The results suggested that the P/Ca ratio, which was thought to be indicating the ratio of hydroxyapataite to the sum of hydroxyapatite and calcium carbonate, could be a good indicator for the quality evaluation of "Ryukotsu".
2002-12-20