一种同时求解多种物相参比强度的方法

By adding standard samples to multiphase mixtures and performing XRD measurements, the reference intensity value can be obtained, solving the problem that the reference intensity method cannot be used in multiphase mixtures and achieving accurate quantitative analysis.

CN120427669BActive Publication Date: 2026-07-17KUNMING UNIV OF SCI & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
KUNMING UNIV OF SCI & TECH
Filing Date
2025-04-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In multiphase mixtures, the problem that existing reference intensity methods cannot be used is that it is impossible to determine the reference intensity values ​​of multiple phases, especially when the value is not available in the PDF card or the database is missing, which makes it impossible to apply the reference intensity method to quantitative analysis.

Method used

By adding standard samples of different contents to a multiphase mixture and mixing them evenly, XRD measurements are performed to extract the intensity of the strongest diffraction peak of each phase. The reference intensity value of the multiphase mixed sample is then solved using a set of equations, thereby completing the quantitative analysis.

Benefits of technology

In the absence of reference intensity values, the reference intensity values ​​of multiple phases can be accurately determined with a quantitative result error of less than 2%, solving the problem that the reference intensity method cannot be used and realizing simple and accurate quantitative analysis.

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Abstract

本发明公开一种同时求解多种物相参比强度的方法,属于X射线定量分析技术领域。本发明通过在多相混合物中添加不同含量的标准样品混合均匀后,进行XRD测量,提取各物相最强衍射峰强度I,此时将标准样品和未知参比强度值的物相最强衍射峰强度值代入方程组,求出未知物相的参比强度值,即可代入参比强度法公式完成定量分析,解决了工业生产中多相混合物在参比强度值未知时无法利用参比强度法进行定量分析的问题,并且所述方法得到的定量结果准确,误差在2%以内。
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