Multivariate Data Analysis for X-ray Fluorescence Spectrometry
نویسنده
چکیده
A multivariate data analysis procedure that uses singular value decomposition and the Ho-Kashyap algorithm is proposed to obtain calibration constants for x-ray fluorescence spectrometry. These calibration constants can be used to obtain results from experimental data by means of a simple dot product calculation. The method was tested on experimental data from the literature. Comparison of results showed that the method performs at least as well or better than the Rasberry-Heinrich method or its modifications. The method can be used to express calibration results obtained with a theoretically based program in such a way that they can be used conveniently in routine applications.
منابع مشابه
Determining the Content of Silicon Dioxide in Bauxites Using X-Ray Fluorescence Spectrometry
The X-ray fluorescence spectrometry and the MA.BM.006 reference spectrophotometric methods were used to determine the content of SiO2 (%) in bauxites from different deposits. The treatment of samples prior to the analysis involved the following steps: annealing, melting using the borax method, and the formation of beads. Certified reference bauxite samples were used for the cali...
متن کاملTotal Reflection X-ray Fluorescence Spectrometry for Characterization of Nuclear Materials
Total reflection X-Ray Fluorescence (TXRF) is a comparatively new technique of material characterization and trace element analysis. It is an advanced variant of Energy Dispersive X-ray Fluorescence (EDXRF) and is based on the principle of total reflection of X-rays when these radiations fall on a flat smooth surface at a grazing angle less than the critical angle of the sample support. The cri...
متن کاملDetermination of trace elements in sediment reference materials by monochromatic X-ray excitation X-ray fluorescence spectrometry.
A new reliable analytical method, "Monochromatic X-ray Excitation X-ray Fluorescence Spectrometry", has been proposed. For validating the method, trace elements in sediment certified reference materials were determined. In the method X-ray fluorescence spectra are measured for specimens and pure metals; in addition the mass-attenuation coefficients of the specimens for various X-ray wavelengths...
متن کاملField Portable X-Ray Fluorescence Geochemical Analysis – Its Contribution to Onsite Real-time Project Evaluation
The field portable x-ray fluorescence spectrometer (FPXRF) has evolved to become a unique highly productive geochemical tool over the past 30 years. As with most highly sophisticated technological tools, it is deceptively simple to use, can easily be carried and operated using only one hand and can provide an onsite, nondestructive chemical analysis of about 30 elements ranging in concentration...
متن کاملElemental Analysis of Different Radish (raphanus Sativus L.) Cultivars by Using Wavelength-dispersive X-ray Fluorescence Spectrometry (wdxrf)
KAYMAK, H. C., I. GUVENC and A. GUROL, 2010. Elemental analysis of different radish (Raphanus sativus L.) Cultivars by using wavelength-dispersive X-ray fluorescence spectrometry (WDXRF). Bulg. J. Agric. Sci., 16: 769-774 The aim of this work is to study the applicability of a quantitative WDXRF (Wavelength-Dispersive X-ray Fluorescence) method, for determination of minerals in radish specimens...
متن کامل