漢薬「滑石」の品質評価に関する基礎研究

概要

論文の詳細を見る
"Huashi (滑石)" is one of the Chinese mineral drugs, and has been used as a diuretic and for the treatment of urolithiasis. "Huashi" has been prescribed as hydrated aluminum silicate and silicon dioxide in Japan, and as hydrated magnesium silicate (talc) in China. However, "Huashi" samples obtained from Japanese and Chinese markets possessed various shapes and colors. Thirty two samples, composed of mass or powder, were found to be categorized into four types (A-D) according to shape of mass, color, luster, transparence, cleavage, taste, smell and feel of powder. In order to scientifically define the difference of these types, we performed mineralogical, ultimate elementary and fine morphological studies using X-ray diffraction method, fluorescent X-ray analysis and scanning electron microscopy combined with electron probe microanalysis, respectively. Type A was found to be composed of halloysite, quartz and orthoclase ; type B: halloysite and metahalloysite ; type C : illite and halloysite ; type D : talc. The contents of individual elements and minute surface structures were also defined as data for classification. The commercial samples of type C were the first found and reported.
日本生薬学会の論文
2001-08-20