| 用XRMF分段多项式回归法定量分析铂钯合金 |
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| 引用本文： | 郭盘林,王基庆.用XRMF分段多项式回归法定量分析铂钯合金[J].光谱学与光谱分析,1999,19(6):871-874. |
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| 作者姓名： | 郭盘林 王基庆 |
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| 作者单位： | 中国科学院上海原子核研究所 |
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| 摘 要： | 在Ｘ射线荧光分析中，当工体效应严重时，工作曲线变得很复杂，仅用一条曲线来拟合，误差较大，为此，采用的分段的方法，将工作曲线分成四段，逐段拟合，取得了很好的效果。拟合工作曲线时，所使用的铂钯合金标样，由Ｘ射线微探针（ＸＲＭＦ）测试。此外，我们还用这种方法，分析了标样薄片中元素分布的均匀性水平。
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| 关 键 词： | X射线微探针 多项式回归 铂钯合金 XRMF |
Quantitative Analysis of Pt Pd Alloys Using Partition Polynomial Regression |
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| P Guo,J Wang,J Zhu,A Le.Quantitative Analysis of Pt Pd Alloys Using Partition Polynomial Regression[J].Spectroscopy and Spectral Analysis,1999,19(6):871-874. |
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| Authors: | P Guo J Wang J Zhu A Le |
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| Institution: | Shanghai Institute of Nuclear Research, Academia Sinica, 201800 Shanghai. |
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| Abstract: | 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. |
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| Keywords: | X ray microfluorescence Polynomial regression |
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