カオリナイトおよびモンモリロナイトの標準混合試料の調製とX線回折による定量に関する統計学的考察
1971 年 87 巻 1001 号 p. 526-532
詳細
1971 年 87 巻 1001 号 p. 526-532
Many papers have appeared in which clay mineral data have been given in quantitative terms. In this paper are presented data on which is based the quantitative method currently being used by the writers.
The measurements most suitable for quantitative purpose were obtained from the ratio of peak intensities ofd(001) spacing of kaolinite and of montmorillonite which was treated with ethylene glycol.
The suspension method for the preparation of standard mixtures described here can be used for the quantitative analysis of kaolinite and montmorillonite with an excellent degree of accuracy. The kaolinite values obtained from the suspension method have 4.0 and 2.0% of deviations of 95% confidence limits within the ranges of 10-80% and 80-90% of kaolinite concentrations, respectively. It is supposed from those results that the proposed technique also promises to yield accurate analysis of clay mixtures of more than binary system. The detection limit was found to be 0.9% for kaolinite and 4.5% for montmorillonite with scintillation counter.
