[A new approach to correction method for matrix effect in X-ray fluorescence spectroscopy analysis].
With the help of fundamental parameter program developed by the authors, the matrix effect of multicomponent complex sample and the composition of each element's X-ray fluorescence intensity are calculated. A new mathematical model for correcting multicomponent matrix effect is deduced theoretically. This model provides a new method to calculate influence coefficients alpha and beta. The correction model and the influence coefficients introduced by this paper have clear and definite physical meaning, which give satisfactory result when utilized in analyzing stainless steel sample. The paper also indicates that the effect of tertiary fluorescence can not be neglected in some cases. From the result of comparison experiments, we draw a conclusion that the tertiary fluorescence effect must be considered while analyzing Cr in a steel sample with high concentration of Ni.
Tan
B
B
University of Science and Technology Beijing, 100083 Beijing.
Gong
W
W
Sun
W
W