摘要
建立了X-射线荧光光谱测定铅基合金中砷、铜、锑、锡、铋、铅等6种元素的快速分析方法。通过优化测试条件,确定了最佳测试参数,有效地避免了其他元素的干扰。基于干扰元素的强度和浓度,采用经验影响系数法校正绘制标准曲线。结果表明,在一定浓度范围内,砷、铜、锑、锡、铋、铅的标准曲线具有良好的线性关系,其中铋、锑和锡的相关系数均在0.999以上。精密度试验结果表明,测定结果相对标准偏差在0.02%~4.2%。准确度试验结果显示,测定值与参考值基本吻合。
A rapid detection method of As,Cu,Sb,Sn,Bi and Pb in lead alloy by X-ray fluorescence spectroscopy was established.The optimum parameters of the detection was established by optimizing the test condition,which can effectively avoid the interference of other elements. Calibration curve of the elements was draw using the experience influence coefficient correction method based on the strength and concentration of the interference elements. The experimental results show that As,Cu,Sb,Sn,Bi and Pb have a good linear relationship in a certain concentration range,and the correlation coefficients of Bi,Sb and Sn was above 0. 999.The test results of precision show that the relative standard deviation was between 0. 02% and 4. 2%. The test results of accuracy show that the measured value is consistent with reference value.
出处
《化学试剂》
CAS
北大核心
2016年第1期43-46,51,共5页
Chemical Reagents
