引用本文:
颜鑫灏, 胡国梁, 陈睿希, 刘红瑜, 姚奇志, 李娇, 李玲玲. 聚乙二醇-硫酸铵-亚硝基R盐体系用于钴(II)的分离[J]. 大学化学,
2024, 39(6): 287-294.
doi:
10.3866/PKU.DXHX202310073
Citation: Xinhao Yan, Guoliang Hu, Ruixi Chen, Hongyu Liu, Qizhi Yao, Jiao Li, Lingling Li. Polyethylene Glycol-Ammonium Sulfate-Nitroso R Salt System for the Separation of Cobalt (II)[J]. University Chemistry, 2024, 39(6): 287-294. doi: 10.3866/PKU.DXHX202310073
Citation: Xinhao Yan, Guoliang Hu, Ruixi Chen, Hongyu Liu, Qizhi Yao, Jiao Li, Lingling Li. Polyethylene Glycol-Ammonium Sulfate-Nitroso R Salt System for the Separation of Cobalt (II)[J]. University Chemistry, 2024, 39(6): 287-294. doi: 10.3866/PKU.DXHX202310073
聚乙二醇-硫酸铵-亚硝基R盐体系用于钴(II)的分离
English
Polyethylene Glycol-Ammonium Sulfate-Nitroso R Salt System for the Separation of Cobalt (II)
Abstract:
The extraction efficiency of Co2+ was systematically evaluated under the condition of a pH 5 buffer solution. Three scenarios were examined: the extraction of Co2+ in Co2+ alone, Ni2+ alone and a mixed Co2+ and Ni2+ solution. Results indicated that the extraction efficiency reached 75.47% when Co2+ was extracted independently. However, this efficiency was markedly reduced in the mixed solution signifying a significant interference from Ni2+ in the spectrophotometric measurement of Co2+ through a series of comparative experiments. Subsequently, a comprehensive set of experiments employed spectrophotometry to assess the extraction efficiency of Co2+, scrutinizing variables such as pH, extraction duration and extraction frequency, to identify optimal experimental conditions and improve the extraction efficiency.
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Key words:
- Polyethylene glycol
- / Spectrophotometric
- / Extraction rate
- / pH
- / Extraction frequency
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