Study on spectrophotometric determination of copper by ionic liquid extraction
Extraction of copper from ionic liquid bmimPF6 was investigated. The effects of ionic liquid dosage, chrome azurol S, and the influence of other coexistence substance on the extraction of copper were studied. In the ionic liquid, the complex formed by copper, chrome azurol S, CTMAB and phen had high absorbance with the maximum absorption of 616 nm and the linear range was of 0.024-0.30 μg/ml, the linear regression equation was A=5.8X-0.1788, correlation coefficient R=0.9978, and detection limit was 0.018 μg/ml. The method was applied to the determination of copper in water, aluminium alloy and the results were in agreement with the certified values. The ionic liquid could be repeatedly used after simple treatment.
ionic liquid extraction copper CAS spectrophotometric
LI Manxiu MA Zhenyan LI Tianwei TAN Yanli
The Department of Chemistry, Xinzhou Teachers University 034000, China
国际会议
The 3rd Asian Conference on Molten Salts and Ions Liquids 2011(第三届亚洲熔盐与离子液体会议)
哈尔滨
英文
205-207
2011-01-06（万方平台首次上网日期，不代表论文的发表时间）