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Optimizing the Calculation of Standardless Quantitative Analysis

Published online by Cambridge University Press:  06 March 2019

Lu Jinsheng ,
Xie Ronghou ,
Tan Xiaoqun  and
C. Nieuwenhuizen
Lu Jinsheng
Affiliation:
Central Iron and Steel Research Institute, Beijing, P.R. of China
Xie Ronghou
Affiliation:
Central Iron and Steel Research Institute, Beijing, P.R. of China
Tan Xiaoqun
Affiliation:
Central Iron and Steel Research Institute, Beijing, P.R. of China
C. Nieuwenhuizen
Affiliation:
Philips Analytical, Almelo, The Netherlands
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Extract

A method for quantitative phase analysis without standards (QPAWS) has been published in 1977 and has gained considerable interest, as the calibration for quantitative XRD may sometimes be difficult. Standards for quantitatative XRD are not generally available, and in many cases even the pure phases cannot be obtained.

The QPAWS method is based on (i) analysis of all phases present in the samples, (ii) foreknowledge of mass absorption coefficients (MAC)(iii) measuring samples which contain all phases in varying concentrations. In this method the number of samples used is equal to the number of phases to be analysed.

Type
VIII. Applications of Digitized XRD Patterns
Information
Advances in X-Ray Analysis , Volume 32: Thirty-Seventh Annual Conference on Applications of X-ray Analysis, August 1-5, 1988 , 1988 , pp. 515 - 522
Copyright
Copyright © International Centre for Diffraction Data 1988

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References

1. Zevin, L.S, J. AppL Cryst. 10:147 (1977).Google Scholar
2. Zevin, L.S, J. AppL Cryst. 12:582 (1979).Google Scholar
3. Minghao, Chen, Acta Metallurgita Sinica 24:B214 (1988).Google Scholar