X-ray fluorescence major element analyses of silicate rocks by creating a calibration curve with the S2 Ranger instrument
- Cơ quan:Faculty of Geosciences and Geoengineering, Hanoi University of Mining and Geology, Vietnam
- Từ khóa: Calibration curve,Major elements, Silicate rocks, Wavelength dispersive,X-ray fluorescence.
- Nhận bài: 11-07-2019
- Chấp nhận: 16-11-2019
- Đăng online: 30-12-2019
- Lĩnh vực: Địa chất - Khoáng sản
Japanese silicate rock standard samples and the S2 Ranger XRF Spectrometer are utilized to create a calibration curve for analyzing major element concentrations of silicate rocks. The calibration curve shows strong positive correlations between intensity and concentrations in most of the major elements of standard samples: Si (0.9583), Ti (0.9971), Al (0.9674), Fe (0.9988), Mn (0.9785), Mg (0.9951), Ca (0.9920), Na (0.9710), K (0.9996), and P (0.9199), suggesting a good calibration curve for measuring major elements of silicate rocks. In order to demonstrate the reliability of standard calibration curves, all of the standard samples were tested. The analysis results display narrow analytical deviations, indicating good stability and reliability of the standard calibration curve and analytical instruments. Furthermore, the JA-2 was tested 10 times to examine counting errors of the instrument and avoid instrumental drift. Most of the standard deviation was less than 0.2 wt%, particularly lower 0.05 wt%, such as TiO2, Fe2O3, MnO, K2O, and P2O5. The calibration curve created by the S2 Ranger XRF Spectrometer is proved to be suitable for analyzing major element concentrations of silicate rocks.
. Bradner, D.P., 1999. Analysis of limestone and dolomites by X-ray fluorescence. The Rigaku Journal 16, 16 - 25.
. Bruker., 2005. S2 Ranger X-ray spectrometer user manual, 120.
. Goto, A., Horie, T., Ohba, T., Fujimaki, H., 2002. XRF analysis of major and trace elements for wide compositional ranges from silicate rocks to carbonate rocks using low dilution glass beads. Japanese Magazine of Mineralogical and Petrological Sciences 33, 162 - 173.
. Imai, N., Terashima, S., Itoh, S., Ando, A., 1995. 1994 compilation values for JGS reference samples “Igneous rock series”. Geochemical Journal 29, 91 - 95.
. Jacob, S., 1955. The theoretical derivation of fluorescent X-ray intensities from mixtures. Spectrochimica Acta, 7, 283 - 306.
. Schlotz, R., Uhlig, S., 2004. Introduction To X-Ray Fluorescence Analysis (XRF) User’S Manual Training. Bruker AXS Gmbh, 127.
. Started, G., Materials, D., Standards, C.P., 2008. Application wizard, 133.
. Rigaku Corporation. Quantitative analysis of dolomite and limestone by pressed powder method with Supermini200. Application Note. XRF 1058, pp.1 - 4.
. Taggart, J.E., David, J., Siems, F., 2002. Major Element Analysis by Wave length Dispersive X-ray Fluorescence Spectrometry. USGS open file 02 - 223.
. Timothy, E., La, T., 1989. Analysis of rocks using X-ray fluorescence spectrometry. The Rigaku Journal 6, 3 – 9.
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