摘要
采用 XRF 靶线标准法测定了黄金饰品中银的含量。当银含量小于1.0%时,测定的标准偏差小于0.01%,测定值与标准值的偏差亦小于0.01%,当银含量在1%至8%时,测定的标准偏差小于0.04%,测定值与标准值的偏差小于0.07%。本法能较好地补偿了表面形状对测定结果的影响。本法适用 Au 含量大于92%的饰品。
This paper described the determination of Ag in gold jewellery by the target line standard method of XRF.While content range of Ag was in 0～1%,the precission(n=6)and the accura- cy was 0.01%;When measurable range was in 1～8%,the precission(n=6)was 0.04% and the accuracy were 0.07%.The influence of surface shape is negligible. This method can only be used to the analysis of jewellery in which the content of Au is≥ 92%.
出处
《福建分析测试》
CAS
1995年第3期322-325,共4页
Fujian Analysis & Testing
关键词
靶线标准法
金饰品
银的测定
target line standard method
gold jewellery
Ag
