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Coordination Analysis by High Resolution X-ray Spectroscopy*

  • You-Zhao Bai (a1), Sei Fukushima (a1) and Yohichi Gohshi (a1)

Extract

Various X-ray fluorescence spectrometers are now commercially available, and these spectrometers are classified into two categories, i.e., energy dispersive and wavelength dispersive (Table 1). Energy dispersive instruments are of low resolution. Wavelength dispersive instruments are often referred to as high resolution. However, commercially available wavelength dispersive instruments are usually equipped with a one-crystal dispersion unit. Therefore, to be more precise, these instruments could be called medium resolution apparatuses. There are other types of spectrometers which are two- or three-crysral spectrometers, and which are known to have very high resolving power. High resolution X-ray fluorescence spectrometers, however, have rarely been constructed. This is because this type of spectrometer needs a very precise and complicated scanning mechanism, and also because the intensity of X-ray fluorescence is often lost.

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The Research Institute of Building Materials Guan Zhuang, Beijing, The People's Republic of China

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1. Gohshi, Y., “Simple Two Crystal Spectrometer And Its Application to X-Ray Spectrochemical Analysis”, Advances in X-Ray Analysis, Vol.12, 518 (1969)
2. Gohshi, Y., Hukao, Y., Hori, K., “A Wide-range, Single-axes, Vacuum Two-Crystal Spectrometer for Fluorescence X-Ray Analysis”, Spectrochim. Acta, 27B:135 (1972)
3. Gohshi, Y., Ohtsuka, A., “The Application of Chemical Effects in High Resolution X-Ray Spectrometry”, Spectrochim. Acta, 28B:179 (1973)
4. Gohshi, Y., Kamada, H., Kohra, K., Utaka, T., Arai, T., “Wide Range Two-Crystal Vacuum X-Ray Spectrometer for Chemical State Analysis”, Appl. Spectrosc. 36:171 (1982)
5. White, E. W., Mckinstry, H. A., Bates, T.F., “Crystal Chemical Study by X-Ray Fluorescence”, Advances in X-Ray Analysis, Vol.2, 239 (1959)
6. Bai, Y.Z., Fukushima, S., Gohshi, Y., “Coordination State Analysis of Aluminum by Al Ka, — Measurement of 5-coordination A1 —”, Yogyo-Kyokai-Shi, 92:475 (1984)
7. Ono, Y., “Cement krinka kohsei kohbutsu ni kansuru kenkyu”, in: “80-nen day no ceramics”, The Ceramic Society of Japan (1931)
8. White, E. W., Gibbs, G. V., “Structural and Chemical Effects on the A1 Kβ X-Ray Emission Band among Aluminum Containing Silicates and Aluminum Oxides”, The American Mineralogist, 54:931 (1969)

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