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)
火焰原子吸收光谱法测定碲化铜中银
- 作者：
- 刘芳美|陈杭|衷水平
- 作者单位：
- 紫金铜业有限公司&福建省铜绿色生产及伴生资源综合利用重点实验室|紫金铜业有限公司&福建省铜绿色生产及伴生资源综合利用重点实验室|紫金矿业集团股份有限公司
基金项目：
- 国家自然科学基金项目（52274349）
详细信息：
- 作者简介：
- 刘芳美（1992—）,女,工程师,硕士,从事矿石与矿物、贵金属与合金、水质分析方法开发及实验室管理工作;E-mail:liufangmei2014@163.com
- 通讯作者：
- isnull
- PDF下载
Determination of silver in copper telluride by flame atomic absorption spectrometry
- English Author：
- Zijin Copper Co.,Ltd.&Fujian Key Laboratory for Green Production of Copper and Comprehensive Utilization of Associated Resources|Zijin Copper Co.,Ltd.&Fujian Key Laboratory for Green Production of Copper and Comprehensive Utilization of Associated Resources|Zijin Mining Group Co.,Ltd.
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
采用标准方法火试金重量法测定碲化铜中银时,操作繁琐、耗时长、检测效率低,不适用于冶炼企业大批量样品快速分析检测。实验使用盐酸＋硝酸溶解试样,在20 %盐酸介质中,采用空气-乙炔火焰,以328.1 nm作为测定波长,建立了火焰原子吸收光谱法测定碲化铜中银的方法。在最优实验条件下,银质量浓度为0.30～3.00 μg/mL时,其与吸光度呈良好线性关系,相关系数为0.999。方法检出限为0.002 μg/mL,定量检出限为0.007 μg/mL。本方法测定结果的相对标准偏差为0.19 %～1.0 %,加标回收率为98 %～103 %,且与标准方法测定结果一致。2种方法不存在显著性差异,可用于冶炼企业快速分析大批量碲化铜中银。
关键词:
碲化铜;火焰原子吸收光谱法;银;溶样方法;干扰元素
Abstract:
The determination of silver in copper telluride by fire assay gravimetry is lengthy in operation and time,less effective,and not applicable to the test on the samples from smelting enterprises that come in large amounts and require rapid analysis at the same time.In the test,after the sample was dissolved with hydrochloric acid and nitric acid,a method for the determination of silver in copper telluride by flame atomic absorption spectrometry was established by using air-acetylene flame and determination wavelength of 328.1 nm in 20 % hydrochloric acid medium.Under the optimal experimental conditions,there was a good linear relationship between silver concentration and its absorbance in the range of 0.30-3.00 μg/mL,and the correlation coefficient was 0.999.The detection limit of this method for silver was 0.002 μg/mL.The limit of quantification was 0.007 μg/mL.The relative standard deviation of the determination results was 0.19 %-1.0 %.The recovery of reference materials was 98 %-103 %.The results are consistent with those obtained by standard methods.There is no significant difference between the two methods.The method could be used for rapid analysis and determination of silver in copper telluride in the samples that come in large quantities from smelting enterprises.
Keywords:
copper telluride;flame atomic absorption spectrometry;silver;sample dissolution method;interference element
