Determination of Rhenium in Copper-Lead-Zinc Ore by Inductively Coupled Plasma-Mass Spectrometry with Closed Decomposition and Cation Exchange Separation

XIONG Ying; WU Zheng; DONG Ya-ni; PEI Ruo-hui; LIU Xiao-Yan; WU He; ZHANG Yan

doi:10.15898/j.cnki.11-2131/td.2015.06.004

2015 Vol. 34, No. 6

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Article navigation > Rock and Mineral Analysis > 2015 > 34(6): 623-628

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XIONG Ying, WU Zheng, DONG Ya-ni, PEI Ruo-hui, LIU Xiao-Yan, WU He, ZHANG Yan. Determination of Rhenium in Copper-Lead-Zinc Ore by Inductively Coupled Plasma-Mass Spectrometry with Closed Decomposition and Cation Exchange Separation[J]. Rock and Mineral Analysis, 2015, 34(6): 623-628. doi: 10.15898/j.cnki.11-2131/td.2015.06.004

Citation:

XIONG Ying, WU Zheng, DONG Ya-ni, PEI Ruo-hui, LIU Xiao-Yan, WU He, ZHANG Yan. Determination of Rhenium in Copper-Lead-Zinc Ore by Inductively Coupled Plasma-Mass Spectrometry with Closed Decomposition and Cation Exchange Separation[J]. Rock and Mineral Analysis, 2015, 34(6): 623-628. doi: 10.15898/j.cnki.11-2131/td.2015.06.004

Determination of Rhenium in Copper-Lead-Zinc Ore by Inductively Coupled Plasma-Mass Spectrometry with Closed Decomposition and Cation Exchange Separation

1.
Shaanxi Institute of Geology and Mineral Resources Experiment, Xi'an 710054, China
2.
Shaanxi Key Laboratory of Exploration and Comprehensive Utilization of Mineral Resources, Xi'an 710054, China

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Corresponding author: XIONG Ying, xianxiongying@sohu.com

Received Date: 03 March 2015

Revised Date: 25 August 2015

Accepted Date: 05 September 2015

Publish Date: 25 June 2015

Abstract

Abstract

Anion exchange resin has been applied to Re separation after acid digestion of Cu-Pb-Zn ores and Re was determined by Inductively Coupled Plasma-Mass Spectrometry(ICP-MS). ReO₄^- in solution was adsorbed by exchange resin and was then eluted from the resin by eluant. This method has a long process, which affects its stability and accuracy. Matrix elements are selected as the goal and 8 g of 732 cation exchange resin in 2% nitric acid medium for 1.5 h static adsorption is used. This method can effectively eliminate the influence of matrix elements on the ICP-MS determination of rhenium. Quartz was used as the blank and mixed with low Re samples. The acquired detection limit was 0.004μg/g, the precision(RSD) is less than 6%, and the recovery ranged from 96% to 104%. The 732 cation exchange resin under the acidic condition has the recovery of >95% for most matrix elements except tungsten and molybdenum, which reduced ionic strength and the concentration of interference elements. Rhenium can be directly determined by ICP-MS, which is simpler and faster than the anion exchange resin separation method.
- copper-lead-zinc ore /
- rhenium /
- closed dissolution /
- cation exchange resin /
- Inductively Coupled Plasma-Mass Spectrometry

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