摘要
使用镁合金标准样品建立校准曲线,采用经验系数法对基体效应进行校正,实现X射线荧光光谱法对镁合金中Al、Si、Fe、Ni、Cu和Zn元素含量的测定。通过试验确定仪器最佳分析参数,根据仪器自带软件提供的数学模型对基体效应进行校正。精密度试验表明,待测元素的相对标准偏差均低于2.5%(n=10),能满足镁合金中各元素的检测要求。采用本方法分析镁合金标准样品,测量值与认定值吻合良好。
The calibration curve was established using certified reference materials of magnesium alloy.The matrix effect was corrected by experience coefficient method.The determination of Al,Si,Fe,Ni,Cu and Zn in magnesium alloys by X-ray fluorescence spectrometry was realized.The optimal instrumental analysis parameters were obtained.The matrix effect was corrected by the mathematical model in instrumental software.The precision test indicated that,the relative standard deviations（RSD,n=10） of testing elements were also less than 2.5 %,which could meet the detection requirements of elements in magnesium alloy.The proposed method was applied to the analysis of certified reference materials of magnesium alloy.The found results were in good agreement with the certified values.
出处
《冶金分析》
CAS
CSCD
北大核心
2011年第10期54-56,共3页
Metallurgical Analysis
基金
国家质检总局科技计划项目(2009QK167)
关键词
X射线荧光光谱法
镁合金
元素分析
X-ray fluorescence spectrometry
magnesium alloys
element analysis
