摘要
由于目前国内白色K金样品成分复杂、配方更新较快、缺乏可用于生产控制和检测工作使用的白色金合金标准样品,特别是含钯配方的标准样品。采用特殊的熔炼铸造工艺研制了主要成分为金、银、铜、锌、镍、钯、铟和铁等8种元素,金的质量分数范围为80%～37.5%的白色金合金标准样品。利用能量色散型X射线荧光光谱仪(XRF)、波长色散型XRF、电感藕合等离子体发射光谱仪(ICP-AES)和电位滴定仪等仪器设备对标准样品进行均匀性检验、稳定性测试、化学定值等,结果表明标准样品的均匀性和稳定性良好,定值准确,工作曲线线性良好。因此,该标准样品作为国家标准样品,可应用于白色金合金饰品的分析方法的确认及检测过程中的质量控制。
Due to the complex composition and fast formula update of white gold alloy samples in China,there was shortage of Certified Reference Material(CRMs)for white gold alloy,especially the ones containing palladium to be used in production control and testing.Therefore,the CRMs for white gold alloy with the major ingredient of Au,Ag,Cu,Zn,Ni,Pd,In,Fe and Au mass fraction of 80%~37.5%were developed by the project team.The homogeneity,stability and certification of standard samples were tested by XRF spectrometry,ICP-AES,muffle and potentiometric titration.The results confirm that the homogeneity,stability and linearity of working curve of the standard samples are satisfactory,and the certification is accurate.Therefore,the standard samples as the national standard samples can be applied to the detection of white gold alloy jewelry,the validation of analytical methods and quality control in the production process.
作者
兰延
陈世昌
王小清
刘洛源
张小虎
关富政
邹振宇
陈文娟
罗志高
李勋鹤
LAN Yan;CHEN Shichang;WANG Xiaoqing;LIU Luoyuan;ZHANG Xiaohu;GUAN Fuzheng;ZOU Zhenyu;CHEN Wenjuan;LUO Zhigao;LI Xunhe(NGTC Gems&Jewelry Institute of Shenzhen,Shenzhen 518020,Guangdong,China;Chow Tai Fook Jewllery (Shenzhen)Co.Ltd.,Shenzhen 518081,Guangdong,China;National Gemstone Testing Center Shenzhen Lab,Shenzhen 518020, Guangdong,China;Shenzhen Chow Tai Fook Jewellery Manufacturing Co.Ltd.,Shenzhen 518081,Guangdong,China)
出处
《贵金属》
CAS
CSCD
北大核心
2018年第A01期199-205,共7页
Precious Metals
关键词
标准样品
白色金合金
定值
均匀性
稳定性
X射线荧光光谱法(XRF)
Certified Reference Material(CRMs)
white gold alloy
homogeneity
certification
stability
X-ray fluorescence spectrometry(XRF)
