[Quantitative analysis of Pt-Pd alloys using partition polynomial regression].
A new regression method was developed for X-ray microflurescence analysis of Pt-Pd alloys using X-ray tube excitation. Working curve is divided into four parts based on concentration of Pt in alloys. For each part, polynomial regression method is used to fit the curve. Results show that this procedure is superior to conventional method of polynomial regression which fitting the whole curve with one equation. Homogeneous level of element distribution in standard alloys is also investigated
Guo
P
P
Shanghai Institute of Nuclear Research, Academia Sinica, 201800 Shanghai.
Wang
J
J
Zhu
J
J
Le
A
A