Abstract：The atomic number of Pt and Au was close. As a result, many factors influencing the fluorescence intensity were also close under X-ray excitation. The analysis method of Pt content in Pt jewelry (only containing Pt and Cu) by X-ray fluorescence spectrometry (XRF) was established after peak area correction of Pt and Cu using Au jewelry serials certified reference materials (only containing Au and Cu). Firstly, the Au jewelry serials certified reference materials was determined to prepare the calibration curve between Cu content (wCu) and Cu/Au peak area ratio Q(Q=ICu/IAu). Secondly, the peak areas of Pt and Cu in Pt jewelry certified reference materials were corrected by experiments to calculate the value of Q. Finally, the spectra of Pt jewelry samples were collected to calculate the value of Q. The content of Cu in Pt jewelry could be obtained based on calibration curve. Then, the content of Pt could be indirectly calculated. The proposed method was applicable for the determination of Pt jewelry with Pt content of 91.70%-99.92%. Five Pt jewelry samples were determined according to the experimental method, and the found results were consistent with those obtained by atomic absorption spectrometry (AAS). The proposed method solved the problem in lack of Pt certified reference materials during the determination of Pt in Pt jewelry.
黄近丹, 林园, 林易晨. 峰面积修正-X射线荧光光谱法测定铂首饰中铂[J]. 冶金分析, 2016, 36(10): 21-24.
HUANG Jin-dan, LIN Yuan, LIN Yi-chen. Determination of platinum in platinum jewelry by X-ray fluorescence spectrometry with peak area correction. , 2016, 36(10): 21-24.
张建波,林力,刘在关.X射线荧光光谱法同时测定钛精矿中主次量组分[J].岩矿测试,2009,28(2):188-190.ZHANG Jian-bo,LIN Li,LIU Zai-guan.Determinations of major and minor components in titanium concentrates by X-ray fluorescence spectrometry [J].Rock and Mineral Analysis,2009,28(2):188-190.
[3]
曲月华,王翠艳.X射线荧光光谱法测定铝质耐火材料中主次成分[J].冶金分析,2006,26(4):36-39.QU Yue-hua,WANG Cui-yan.Determination of major and minor components in aluminum refractory by X-ray fluorescence spectrometry[J].Metallurgical Analysis,2006,26(4):36-39.
[4]
罗立强,詹秀春,李国会.X射线荧光光谱仪[M].北京:化学工业出版社,2008:121-128.
[5]
高建民,曲志勇,张愈洁,等.X射线荧光光谱法测定生铁中10种元素[J].冶金分析,2011,31(4):39-43.GAO Jian-min,QU Zhi-yong,ZHANG Yu-jie,et al.Determination of ten elements in cast iron by X-ray fluorescence spectrometry [J].Metallurgical Analysis,2011,31(4):39-43.
[6]
罗学辉,苏建芝,鹿清,等.高倍稀释熔融制样-X射线荧光光谱法测定铅锌矿中主次组分[J].冶金分析,2014,34(1):50-54.LUO Xue-hui,SU Jian-zhi,LU Qing,et al.Determination of major and minor components in lead-zinc ores by X-ray fluorescence spectrometry with high dilution fusion sample perparation[J].Metallurgical Analysis,2014,34(1):50-54.
[7]
谷松海,宋义,郭芬.X-射线荧光光谱法同时测定铬矿中主次成分[J].冶金分析,2008,28(4):16-19.GU Song-hai,SONG Yi,GUO Fen.Determination of major and minor components in chrome ore by X-ray fluorescence spectrometry [J].Metallurgical Analysis,2008,28(4):16-19.
陆晓明,金德龙.离心浇铸制样-X射线荧光光谱法测定铌铁合金中铌硅磷[J].冶金分析,2009,29(3):16-19.LU Xiao-ming,JIN De-long.Determination of niobium,silicon and phosphorus in ferrocolumbium by X-ray fluorescence spectrometry using sample preparation technique of centrifugal casting [J].Metallurgical Analysis,2009,29(3):16-19.
[10]
鲍希波,石毓霞,赵靖,等.熔融制样-X射线荧光光谱法测定硅铁合金中主次元素[J].冶金分析,2010,30(5):14-18.BAO Xi-bo,SHI Yu-xia,ZHAO Jing,et al.X-ray fluorescence spectrometry for the determinationof major and minor elements in ferro-silicon with fusion sample preparation[J].Metallurgical Analysis,2010,30(5):14-18.
