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dc.contributor.author
Cruz Sotolongo, Annaly
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dc.contributor.author
Martinis, Estefanía Mabel
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dc.contributor.author
Wuilloud, Rodolfo German
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dc.date.available
2020-03-20T18:36:03Z
dc.date.issued
2018-01
dc.identifier.citation
Cruz Sotolongo, Annaly; Martinis, Estefanía Mabel; Wuilloud, Rodolfo German; An easily prepared graphene oxide-ionic liquid hybrid nanomaterial for micro-solid phase extraction and preconcentration of Hg in water samples; Royal Society of Chemistry; Analytical Methods; 10; 3; 1-2018; 338-346
dc.identifier.issn
1759-9660
dc.identifier.uri
http://hdl.handle.net/11336/100441
dc.description.abstract
A preconcentration method based on the use of graphene oxide (GO) functionalized with an ionic liquid (IL) was developed for trace Hg determination in water samples. The IL-GO hybrid nanomaterial was prepared by a simple procedure to functionalize GO with the IL 1-butyl-3-dodecylimidazolium bromide ([C4C12im]Br) and its performance as a sorption material for Hg was evaluated. A microcolumn filled with the IL-GO nanomaterial was used for preconcentration and determination of Hg followed by electrothermal atomic absorption spectrometry (ETAAS) detection. Mercury was retained at pH 5.0 and 20% (v/v) HNO3 was used for the elution of Hg from the microcolumn. The effects of different variables, including the sample volume, extraction time, sample flow rate, type and concentration of eluent and eluent flow rate were carefully studied. High retention efficiency (100%) was achieved with the proposed IL-GO sorption nanomaterial without the need for additional chelating reagents or derivatization reagents, which is an important advantage compared with traditional preconcentration methods. A sensitivity enhancement factor of 100 and a low detection limit of 14 ng L-1 were obtained under optimal experimental conditions. The proposed method can be considered as a simple, cost-effective and efficient alternative for Hg determination in water samples like river, rain, mineral and tap water.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Royal Society of Chemistry
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
GRAPHENE OXIDE
dc.subject
1-BUTYL-3-DODECYLIMIDAZOLIUM BROMIDE
dc.subject
MERCURY
dc.subject
SOLID PHASE MICROEXTRACTION
dc.subject
ELECTROTHERMAL ATOMIC ABSORPTION SPECTROMETRY
dc.subject
GRAPHENE OXIDE
dc.subject
SOLID PHASE MICROEXTRACTION
dc.subject.classification
Química Analítica
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dc.subject.classification
Ciencias Químicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
An easily prepared graphene oxide-ionic liquid hybrid nanomaterial for micro-solid phase extraction and preconcentration of Hg in water samples
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-03-20T13:11:48Z
dc.journal.volume
10
dc.journal.number
3
dc.journal.pagination
338-346
dc.journal.pais
Reino Unido
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dc.description.fil
Fil: Cruz Sotolongo, Annaly. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo; Argentina
dc.description.fil
Fil: Martinis, Estefanía Mabel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo; Argentina
dc.description.fil
Fil: Wuilloud, Rodolfo German. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo; Argentina
dc.journal.title
Analytical Methods
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2018/AY/C7AY02201H
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1039/C7AY02201H
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