摘要
应用X-荧光能谱分析(ED-XRF)和新的定量分析软件测定了26个黄金标样,研究了饰品形状的影响,不同方法,不同实验室测试结果的比对,表明在所选的工作条件下样品形状无明显影响。方法可靠、快速、简便,非破坏性,适于常规、批量分析。Au含量≥99%时,分析误差≤0.15%,精密度≤0.1%;金含量90%~99%时,分析误差和精密度≤0.2%;金含量75%~90%和<75%时,分析误差分别≤0.4%和0.5%,精密度均≤0.2%;Ag、Cu和Zn的分析误差均≤0.5%,精密度≤0.2%。少标样基本参数法和多标样回归法的结果一致,在实用上有重要意义,十分有利于ED-XRF的推广应用。
The ED-XRF(Energy Dispersion X-ray Fluorescence)method is applied to the determination of gold and co-existing elements in jewelries.The shape of jewelries does not affect the analytical results.Comparison with other methods and interlaboratory study indicate that this method is reliable,rapid,nondestructive and suitable for routine analysis.The standard deviation of gold determination is≤0.15%at a gold content of≥99%;≤0.2% at a gold content of 90%~99%;≤0.4%at a gold content of 75~90%;and≤0.5%at a gold content of<75%.The standard deviations of Ag,Cu and Zn determination are≤0.5%.
出处
《分析测试学报》
CAS
CSCD
1995年第5期1-9,共9页
Journal of Instrumental Analysis