Major and trace element analyses of igneous rocks by polarizing energy dispersive X-ray fluorescence spectrometry (EDXRF)

Toshio Miyazaki, Shin Ichi Yamasaki, Noriyoshi Tsuchiya, Satoshi Okumura, Ryoichi Yamada, Michihiko Nakamura, Yoshitaka Nagahashi, Takeyoshi Yoshida

研究成果: Article査読

5 被引用数 (Scopus)

抄録

In this study, we investigated the analytical performance of an energy dispersive X-ray fluorescence spectrometry (EDXRF) by measuring chemical compositions of eighteen standard rock samples covering compositional range of common igneous rocks. Glass beads were prepared and calibration lines for ten major oxides (SiO2, TiO2, Al2O3, Fe2O3, MnO, MgO, CaO, Na2O, K2O, P2O5 ) and eighteen trace elements (V, Cr, Co, Ni, Cu, Zn, Rb, Sr, Y, Zr, Nb, Cs, Ba, La, Ce, Nd, Pb, Th) were examined. We also prepared three original standard samples by mixing two standard rock samples in order to improve the accuracy of the calibration lines. Correlation coeffcients of the calibration lines for major elements are better than 0.99 (except for Al2O3 with 0.95), and those for trace elements were between 0.96 and 0.99. The analytical accuracies for major and trace elements were almost compatible to those reported by the previous studies using a wavelength dispersive X-ray fluorescence spectrometry (WDXRF). The precisions of EDXRF are also comparable to those of WDXRF. The EDXRF analysis has become a useful and powerful technique to measure the chemical compositions of igneous rocks as well as traditional WDXRF.

本文言語English
ページ(範囲)47-53
ページ数7
ジャーナルJapanese Magazine of Mineralogical and Petrological Sciences
43
2
DOI
出版ステータスPublished - 2015

ASJC Scopus subject areas

  • 地球化学および岩石学
  • 経済地質学

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