RT journal article
T1 Selective liquid phase micro-extraction of metal chloro-complexes from saline waters using ionic liquids
A1 Herce Sesa, Belén
A1 Pirkwieser, Philip
A1 López López, José Antonio
A1 Jirsa, Franz
A1 Moreno Aguilar, Carlos
A2 Química Analítica
K1 ionic liquids
K1 solvent bar micro-extraction
K1 saline waters
K1 salt pans
K1 metals
AB Existing methods for the extraction of priority metallic pollutants as Ag, Cd, Cu, Ni andZn from saline waters present limited efficacy due to the high complexity of the watermatrix, which affects metals speciation. There is a lack of reagents for the efficientextraction of the metal chlorocomplexes formed at the natural pH of saline waters,requiring tedious and reagent consuming processes. To develop a simple method for theefficient micro-extraction of metallic chlorocomplexes in saline waters, two taskspecific ionic liquids (TSILs) are proposed. The TSILs Methyltrioctilammoniumhexylsulfanyl acetate ([N1888][C6SAc]) and methyltrioctilphosphonium hexylsulfanylacetate ([P1888][C6SAc]) have been supported on a solvent bar micro-extraction (SBME)and applied to the micro-extraction of Ag, Cd, Cu, Ni and Zn from seawater, as well asinland and marshland salt-pan waters. The extraction efficacy was related with the formation of negatively charged chlorocomplexes, being higher for Cd, Ag and Zn thanfor Cu and Ni. Concluding, the proposed methodology can be considered as a valuableand simple tool for the selective extraction of metals from saline and hypersaline naturalwaters.
SN 0959-6526
YR 2020
FD 2020
LK http://hdl.handle.net/10498/32454
UL http://hdl.handle.net/10498/32454
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 12-nov-2026