X-ray fluorescence analysis for major elements in granitic rocks by fused glass disk method

X-ray fluorescence analysis for major elements in granitic rocks by fused glass disk method

Creators Sato Ana Maria

Creators Sanchez Alberto Carmelo

Creators Ikeda Ko

Chemical analysis of major elements has been carried out by XRF method, using fused glass disks prepared with 1:10 proportion of sample: flux. Standard samples of the Geological Survey of Japan were employed to draw the calibration curves for the following oxides: SiO_2, TiO_2, Al_2O_3, Fe_2O_3, MnO, CaO, MgO, P_2O_5 and K_2O. On the basis of these curves, total analysis was performed on 6 unknown samples of granite. Contents of Na_2O were determined separately by flame photometry and the results were discussed with special emphasis to silica determination.

[ISSN]0386-3433

[NCID]AA0086073X