ケイ光X線分析法による粘土の酸化ケイ素,酸化アルミニウム,酸化鉄,酸化マグネシウムの定量
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Major components of clay, SiO<SUB>2</SUB>, Al<SUB>2</SUB>O<SUB>3</SUB>, Fe<SUB>2</SUB>O<SUB>3</SUB> and MgO, were determined by X-ray spectrochemical analysis. The portion whose grain size was less than 5μ was divided from clayey soils of different localities and various clay minerals contained. The specimens for measurement were prepared by pressing. The relation between the intensity of spectra and the matrix change was investigated on oxide mixtures, SiO<SUB>2</SUB> Al<SUB>2</SUB>O<SUB>3</SUB>, Fe<SUB>2</SUB>O<SUB>3</SUB> and MgO: FeKα and SiKα obey Beattie's equation for absorption. The enhancement effect of Si to AlKα appears to be constant with SiO<SUB>2</SUB> of more than 60%. The effect of P, when ADP crystal used, to MgKα was ascertained. SiO<SUB>2</SUB>(3070%), Al<SUB>2</SUB>O<SUB>3</SUB> (1037%), Fe<SUB>2</SUB>O<SUB>3</SUB> (0.516%), and MgO(0.521%) in clay samples were determined with the standard deviation to chemical analysis of 1.12%, 0.64%, 0.46% and 0.53%, respectively.
- 社団法人 日本分析化学会の論文
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- ケイ光X線分析法による粘土の酸化ケイ素,酸化アルミニウム,酸化鉄,酸化マグネシウムの定量