影响乙酸乙酯萃取法测定高纯金中铁元素含量的原因分析  

Analysis of the Factors Influencing the Determination of Iron in High-Pure Gold by Ethyl Acetate Extraction

作　　者：张少强 那勃[1] 张筠婷 苟玲芝 孟建华[1] 崔建军[1] ZHANG Shao-qiang;NA Bo;ZHANG Jun-ting;GOU Ling-zhi;MENG Jian-hua;CUI Jian-jun(Tianjin Product Quality Inspection Technology Research Institute,National Testing Center for Gold and Silver Jewelry(Tianjin);Hua Jin Guo Jian(Shenzhen)Gold and Silver Jewelry Inspection Center Co.,Ltd.)

机构地区：[1]天津市产品质量监督检测技术研究院,国家金银饰品质量监督检验中心(天津) [2]华津国检(深圳)金银珠宝检验中心有限公司

出　　处：《中国标准化》2020年第12期246-249,共4页China Standardization

摘　　要：本文对乙酸乙酯萃取法测定高纯金中铁元素含量的影响原因进行了分析。通过加标回收实验和反应体系的酸度测试,证明铁元素含量在测试过程中受到了酸度的较大影响。建议通过多种方法验证比对测试高纯金中铁元素含量。This paper analyzes the factors affecting the determination of iron content in high purity gold by ethyl acetate extraction method.It proves that the content of iron element is greatly affected by the acidity in the process of the experiment by the recovery test and the acidity of the reaction system.It propose the suggestion to verify and test the content of iron in high-purity gold by various methods.

关 键 词：乙酸乙酯 萃取 高纯金 铁 

分 类 号：O658.2[理学—分析化学] TG146.31[理学—化学]