System for mercury preconcentration in natural waters based on a polymer inclusion membrane incorporating an ionic liquid
dc.contributor.author
dc.date.accessioned
2019-10-09T07:22:06Z
dc.date.available
2019-10-09T07:22:06Z
dc.date.issued
2019-06-05
dc.identifier.issn
0304-3894
dc.identifier.uri
dc.description.abstract
In this study, we have evaluated two different ionic liquids (IL) as extractants based on the same cation (trioctylmethylammonium) but bearing the anion thiosalicylate (TOMATS) or salicylate (TOMAS). Both IL have been incorporated as carriers in polymer inclusion membranes (PIMs), and mercury (Hg) has been preconcentrated using a special device. Results show that among the tested IL, TOMATS has given better results. A PIM made of 50% cellulose triacetate, 30% TOMATS and 20% nitrophenyl octyl ether as a plasticizer enabled the effective transport of Hg to a 10−3M cysteine solution used as a stripping phase. This novel and simple PIM-device system allows the transport of Hg at low concentration levels in different types of natural waters such as rivers, groundwater and seawater without any previous treatment. Since no matrix effect was observed on Hg transport efficiency with different waters, this newly developed PIM-system could be used as a global detection system for this metal. The effect of biofilm growth on the surface of PIMs has been investigated for the first time, and no significant differences on Hg transport have been found when using a fresh PIM and a PIM deployed for 7 days in a pond
dc.description.sponsorship
The financial support of the Ministerio de Economía y Competitividad through projects
CTM2013-48967-C2-2-P and CTM2016-78798-C2-2-P (AEI/FEDER/UE) is gratefully
acknowledged. Gemma Elias would also like to thank the scholarship IFUdG2016-2018
from University of Girona
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.relation
MINECO/PE 2016-2018/CTM2016-78798-C2-2-P
info:eu-repo/grantAgreement/MINECO//CTM2013-48967-C2-2-P/ES/DESARROLLO, INTERPRETACION Y APLICACION DE TECNICAS EMERGENTES PARA DETERMINAR LA ESPECIACION Y LA DISPONIBILIDAD DE IONES INORGANICOS Y NANOPARTICULAS EN MEDIOS NATURALES/
dc.relation.isformatof
Versió postprint del document publicat a: https://doi.org/10.1016/j.jhazmat.2019.03.017
dc.relation.ispartof
© Journal of Hazardous Materials, 2019, vol. 371, p. 316-322
dc.relation.ispartofseries
Articles publicats (D-Q)
dc.rights
Tots els drets reservats
Reconeixement-NoComercial-SenseObraDerivada 4.0 Internacional
dc.rights.uri
dc.subject
dc.title
System for mercury preconcentration in natural waters based on a polymer inclusion membrane incorporating an ionic liquid
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.date.embargoEndDate
info:eu-repo/date/embargoEnd/2021-06-05
dc.type.version
info:eu-repo/semantics/acceptedVersion
dc.identifier.doi
dc.contributor.funder
dc.type.peerreviewed
peer-reviewed
dc.relation.ProjectAcronym
dc.identifier.eissn
1873-3336