基本参数法X射线荧光无损分析铅黄铜中铜和锌  

Determination of Cu and Zn elements in lead brass using fundamental parameter method by X-ray fluorescence non-destructive analysis

作　　者：刘敏[1] 庹先国[2,3] 李哲[1] 徐立鹏[1] 王俊[1] 陈磊[1] 

机构地区：[1]成都理工大学地学核技术四川省重点实验室,成都610059 [2]成都理工大学地质灾害防治与地质环境保护国家重点实验室,成都610059 [3]西南科技大学,绵阳621000

出　　处：《核技术》2012年第11期845-848,共4页Nuclear Techniques

基　　金：国家杰出青年科学基金(41025015);国家自然科学基金(40974065);核退役与核废料处置四川省青年科技创新研究团队(2011JTD0013);863计划(2012AA063501)资助

摘　　要：应用能量色散X射线荧光分析仪对系列铅黄铜合金标样进行能谱测量,根据基本参数法原理,获取了方法中所需的质量吸收系数()、激发因子(E)等关键参数,编写计算程序,对标样中铜、锌含量进行了分析。结果表明,基本参数法能克服铜和锌元素间的吸收增强效应,该方法测量铅黄铜合金中铜和锌的含量范围分别为54%–64%、33%–45%,对铜、锌的相对标准偏差(n 10)分别为0.10%、0.15%。According to fi,mdamental parameter method theory, gained the key parameters such as mass-absorption coefficients and excitation factors and wrote the calculation procedure. In experiment, a series of lead brass alloy standard samples were analyzed with an energy dispersive X-ray fluorescence spectrometer and calculated the contents of Cu, Zn of the samples via the fundamental parameter calculation procedure. The result shows the fundamental parameter method can overcome the absorption-enhancement effect between Cu and Zn elements well. The measured contents of Cu and Zn is respectively 54%-64% and 33%-45%, the precision of the method is 0.10% and 0.15 % respectively for Cu and Zn.

关 键 词：能量色散X荧光分析 铅黄铜合金 基本参数法 吸收增强效应 

分 类 号：O657.34[理学—分析化学]