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金饰品标准样品的制备研究

Study on preparation of standard samples for gold jewelry

  • 摘要: 参照金饰品中金元素含量范围及有害元素限量的规定,设计了饰品金标准样品的化学成分,经熔铸加工、均匀性及稳定性检验、定值分析,研制了金饰品标准样品。该标准样品一共有16个样号,涵盖了Pb、Cd等11个元素,定值结果显示,标准值为Au 99.99 %~37.47 %,Ag 99.99 %~0.20 %,Cu 99.99 %~0.22 %,其他添加的杂质元素Zn、Ni、In、Pd、As、Cr、Pb和Cd为7.93 %~0.011 %,其中,Cd的定值结果为参考值。该标准样品化学成分设计合理,成分均匀,稳定性好,已批准为国家级标准样品(GSB 04-3651-2019),可用于金饰品的分析检测。

     

    Abstract: In accordance with the specifications for gold content and hazardous element limits in gold jewelry,a standard sample for gold jewelry was developed.The chemical composition of the sample was designed,followed by melting,homogeneity and stability testing,and value determination analysis.A total of 16 sample numbers were established,covering 11 elements including Pb,Cd,etc.The standard values from the value determination analysis range from Au 99.99 % to 37.47 %,Ag 99.99 % to 0.20 %,and Cu 99.99 % to 0.22 %.Other added impurities like Zn,Ni,In,Pd,As,Cr,Pb,and Cd range from 7.93 % to 0.011 %,with Cd’s value being a reference.The standard sample exhibits a rational chemical composition,homogeneity,and good stability,and has been approved as a national standard sample (GSB 04-3651-2019),suitable for the analysis and testing of gold jewelry.

     

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