| dc.creator | Rodrigues, Guilherme Dias | |
| dc.creator | Lemos, Leandro Rodrigues de | |
| dc.creator | Silva, Luis Henrique Mendes da | |
| dc.creator | Silva, Maria C. Hespanhol da | |
| dc.date | 2018-05-09T11:22:27Z | |
| dc.date | 2018-05-09T11:22:27Z | |
| dc.date | 2013-03-01 | |
| dc.date.accessioned | 2023-09-27T20:54:18Z | |
| dc.date.available | 2023-09-27T20:54:18Z | |
| dc.identifier | 00219673 | |
| dc.identifier | https://doi.org/10.1016/j.chroma.2013.01.003 | |
| dc.identifier | http://www.locus.ufv.br/handle/123456789/19402 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8950548 | |
| dc.description | This work developed a new and efficient method of extracting and separating Co(II), Ni(II) and Cd(II) in aqueous two-phase systems (ATPS) composed of triblock copolymer (L64) + Na2C4H4O6 + water and L64 + Li2SO4 + water using the hydrophobic extractant 1-nitroso-2-naphtol, which complexes the metal ions and partitions in the triblock copolymer micelles in the ATPS top phase. Metal extraction from the salt-rich phase to the copolymer – rich phase is strongly affected by the fine-tuning of the following parameters: amount of added extractant, type of electrolyte, pH, and tie-line length. Excellent separation factors (Si,j) between the metals were obtained at pH = 3.00 (SCo,Cd = 1550 and SNi,Cd = 16,700) and pH = 1.00 (SCo,Ni = 826). In the interference study, Co(II) was selectivity extracted in the top phase in the presence of Ni(II) and Cd(II) in a concentration of up to 20 times the cobalt level in the system. | |
| dc.format | pdf | |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.publisher | Journal of Chromatography A | |
| dc.relation | v. 1279, p. 13-19, march 2013 | |
| dc.rights | Published by Elsevier B.V. | |
| dc.subject | Cobalt | |
| dc.subject | Nickel | |
| dc.subject | Cadmium | |
| dc.subject | Aqueous two-phase system | |
| dc.subject | Hydrophobic extractant | |
| dc.title | Application of hydrophobic extractant in aqueous two-phase systems for selective extraction of cobalt, nickel and cadmium | |
| dc.type | Artigo | |
