中国科技核心期刊
美国化学文摘社（CAS）数据库
美国EBSCO学术数据库
日本科学技术振兴机构数据库(JST)
湿法分离富集—火焰原子吸收光谱法测定粗银中的金
- 作者：
- 肖红新|陈晓东
- 作者单位：
- 广东省工业分析检测中心|广东省工业分析检测中心
基金项目：
- 广东省科学院发展专项资金项目（2018GDASCX-0114，2020GDASYL-20200302014）
详细信息：
- 作者简介：
- 肖红新（1972—），男，湖南邵东人，教授级高级工程师，从事冶金分析检测工作；广州市天河区长兴路363号，广东省工业分析检测中心，510651；E-mail:xiaohx168@163.com
- 通讯作者：
- isnull
- 此文档没有上传！
Determination of gold in crude silver by wet separation and enrichment-flame atomic absorption spectrometry
- English Author：
- Guangdong Industrial Analysis and Testing Center|Guangdong Industrial Analysis and Testing Center
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
粗银中金作为计价元素，其准确测定具有重要意义。实验建立了湿法分离富集—火焰原子吸收光谱法测定粗银中金的新方法。采用硝酸分解样品，过滤分离基体银及其他金属，滤渣用王水溶解，在5 %盐酸介质中，火焰原子吸收光谱法测定金。金质量浓度在0～8.0 μg/mL内与吸光度呈良好的线性关系，方法加入标准物质回收率大于98 %，测定结果的相对标准偏差小于3 %（n=7），且与铅试金法测定结果一致，具有简单快速、准确可靠等优点，适用于粗银中金的测定。
关键词:
湿法分离；富集；火焰原子吸收光谱法；粗银；金；干扰
Abstract:
The accurate determination of gold,an valuation element,in crude silver is significant.A new method for the determination of gold in crude silver by wet separation and enrichment-flame atomic absorption spectrometry was established.The sample was decomposed by nitric acid,substrate silver and other metals were separated by filtration,filter residue was dissolved by aqua regia.In 5 % hydrochloric acid medium,the determination of gold was conducted by flame atomic absorption spectrometry.The mass concentration of gold in 0-8.0 μg/mL has a good linear relationship with the absorbance.The recovery rate of reference material was greater than 98 %,the relative standard deviation was less than 3 % (n=7)and the determination results are consistent with that of lead assay.The method is simple,fast,accurate and reliable,suitable for the determination of gold in crude silver.
Keywords:
wet separation;enrichment;flame atomic absorption spectrometry;crude silver;gold;interference
