On-Line Radioisotope XRF Analysis of Copper, Arsenic, and Sulfur in Copper Electrolyte Purification Solutions
On-Line Radioisotope XRF Analysis of Copper, Arsenic, and Sulfur in Copper Electrolyte Purification Solutions
复制标题
DOI：
10.1366/0003702944029884
复制
发表时间：
1994-07
影响因子：
3.5
通讯作者：
R. A. Davidson;E. B. Walker;Craig R. Barrow;C. F. Davidson
中科院分区：
文献类型：
--
作者：
R. A. Davidson;E. B. Walker;Craig R. Barrow;C. F. Davidson
美国矿产局（USBM）和韦伯州立大学（WSU）开发了一种在线分析系统，用于实验室规模的解铜电解池中的铜电解溶液，该系统使用便携式能量色散x射线荧光（XRF）装置。便携式XRF单元利用Fe-55和Cm-244放射性同位素源进行样品分析。铜，硫和砷在电解净化溶液中直接分析成功，没有任何稀释或样品改变。进行元素间反褶积以补偿硫对铜荧光的基体吸收所产生的干扰。铜精炼操作中普遍存在的硫需要在XRF分析铜时进行硫校正。为便携式XRF装置设计和构建了一个独特的流动取样池，可以实时分析电解池中连续泵送的样品流。
The U.S. Bureau of Mines (USBM) and Weber State University (WSU) have developed an on-line analysis system for copper electrolytic solutions in a laboratory-scale decopperization electrolytic cell using a portable energy-dispersive X-ray fluorescence (XRF) unit. The portable XRF unit utilizes Fe-55 and Cm-244 radioactive isotope sources for sample analysis. Copper, sulfur, and arsenic were successfully analyzed directly in electrolytic purification solutions without any dilution or sample alteration. Interelement deconvolution was conducted to compensate for interferences resulting from matrix absorption of copper fluorescence by sulfur. The ubiquitous presence of sulfur in copper refining operations necessitates sulfur correction in the analysis of copper by XRF. A unique flow-through sampling cell was engineered and constructed for the portable XRF unit which allowed real-time analysis of a continuously pumped sample stream from the electrolytic cell.