PPT Slide

• The feature of this method that makes it highly attractive is that equation … (4) contains only ratios and no absolute values of intensities and calibration constants. Thus the method can be considered independent of measurement conditions.
• Determination of ?RJ ratios by matrix methods (see Zevin, p136 ff).
• Also called external standard method (Hubbard C.R., Evans E.H, Smith, D.K., J.Appl.Cryst., 9, 169-74, 1976) since the matrix analysis utilises a third phase K not found or doped in the sample in acquiring the ?RJ ratios.

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