Quantification and size characterisation of silver nanoparticles in environmental aqueous samples and consumer products by single particle-ICPMS

Single particle-inductively coupled plasma mass spectrometry (SP-ICPMS) is a promising technique able to generate the number based-particle size distribution (PSD) of nanoparticles (NPs) in aqueous suspensions. However, SP-ICPMS analysis is not consolidated as routine-technique yet and is not typica...

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Autores: Aznar, Ramón, Barahona, Francisco, Geiss, O., Ponti, J., Tadeo Lluch, José Luis, Barrero-Moreno, J.
Formato: artículo
Fecha de publicación:2017
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/291932
Acesso em linha:http://hdl.handle.net/10261/291932
Access Level:acceso abierto
Palavra-chave:Consumer products
Environmental waters
Nanoparticles
Silver
SP-ICPMS
Single particle
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spelling Quantification and size characterisation of silver nanoparticles in environmental aqueous samples and consumer products by single particle-ICPMSAznar, RamónBarahona, FranciscoGeiss, O.Ponti, J.Tadeo Lluch, José LuisBarrero-Moreno, J.Consumer productsEnvironmental watersNanoparticlesSilverSP-ICPMSSingle particleSingle particle-inductively coupled plasma mass spectrometry (SP-ICPMS) is a promising technique able to generate the number based-particle size distribution (PSD) of nanoparticles (NPs) in aqueous suspensions. However, SP-ICPMS analysis is not consolidated as routine-technique yet and is not typically applied to real test samples with unknown composition. This work presents a methodology to detect, quantify and characterise the number-based PSD of Ag-NPs in different environmental aqueous samples (drinking and lake waters), aqueous samples derived from migration tests and consumer products using SP-ICPMS. The procedure is built from a pragmatic view and involves the analysis of serial dilutions of the original sample until no variation in the measured size values is observed while keeping particle counts proportional to the dilution applied. After evaluation of the analytical figures of merit, the SP-ICPMS method exhibited excellent linearity (r2>0.999) in the range (1–25) × 104 particles mL−1 for 30, 50 and 80 nm nominal size Ag-NPs standards. The precision in terms of repeatability was studied according to the RSDs of the measured size and particle number concentration values and a t-test (p = 95%) at the two intermediate concentration levels was applied to determine the bias of SP-ICPMS size values compared to reference values. The method showed good repeatability and an overall acceptable bias in the studied concentration range. The experimental minimum detectable size for Ag-NPs ranged between 12 and 15 nm. Additionally, results derived from direct SP-ICPMS analysis were compared to the results conducted for fractions collected by asymmetric flow-field flow fractionation and supernatant fractions after centrifugal filtration. The method has been successfully applied to determine the presence of Ag-NPs in lake water; tap water; tap water filtered by a filter jar; seven different liquid silver-based consumer products; and migration solutions (pure water and sweat simulant) from plasters. Results obtained by SP-ICPMS were supported by transmission electron microscopy and energy dispersive spectroscopy characterisation, suggesting that the proposed methodology can be applied as a positive screening test in the simultaneous quantification and size characterisation of Ag-NPs in samples of environmental interest. © 2017Peer reviewedElsevierConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202320232017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/291932reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésDepartamento de Medio Ambiente y AgronomíaSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2919322026-05-22T06:33:51Z
dc.title.none.fl_str_mv Quantification and size characterisation of silver nanoparticles in environmental aqueous samples and consumer products by single particle-ICPMS
title Quantification and size characterisation of silver nanoparticles in environmental aqueous samples and consumer products by single particle-ICPMS
spellingShingle Quantification and size characterisation of silver nanoparticles in environmental aqueous samples and consumer products by single particle-ICPMS
Aznar, Ramón
Consumer products
Environmental waters
Nanoparticles
Silver
SP-ICPMS
Single particle
title_short Quantification and size characterisation of silver nanoparticles in environmental aqueous samples and consumer products by single particle-ICPMS
title_full Quantification and size characterisation of silver nanoparticles in environmental aqueous samples and consumer products by single particle-ICPMS
title_fullStr Quantification and size characterisation of silver nanoparticles in environmental aqueous samples and consumer products by single particle-ICPMS
title_full_unstemmed Quantification and size characterisation of silver nanoparticles in environmental aqueous samples and consumer products by single particle-ICPMS
title_sort Quantification and size characterisation of silver nanoparticles in environmental aqueous samples and consumer products by single particle-ICPMS
dc.creator.none.fl_str_mv Aznar, Ramón
Barahona, Francisco
Geiss, O.
Ponti, J.
Tadeo Lluch, José Luis
Barrero-Moreno, J.
author Aznar, Ramón
author_facet Aznar, Ramón
Barahona, Francisco
Geiss, O.
Ponti, J.
Tadeo Lluch, José Luis
Barrero-Moreno, J.
author_role author
author2 Barahona, Francisco
Geiss, O.
Ponti, J.
Tadeo Lluch, José Luis
Barrero-Moreno, J.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Consumer products
Environmental waters
Nanoparticles
Silver
SP-ICPMS
Single particle
topic Consumer products
Environmental waters
Nanoparticles
Silver
SP-ICPMS
Single particle
description Single particle-inductively coupled plasma mass spectrometry (SP-ICPMS) is a promising technique able to generate the number based-particle size distribution (PSD) of nanoparticles (NPs) in aqueous suspensions. However, SP-ICPMS analysis is not consolidated as routine-technique yet and is not typically applied to real test samples with unknown composition. This work presents a methodology to detect, quantify and characterise the number-based PSD of Ag-NPs in different environmental aqueous samples (drinking and lake waters), aqueous samples derived from migration tests and consumer products using SP-ICPMS. The procedure is built from a pragmatic view and involves the analysis of serial dilutions of the original sample until no variation in the measured size values is observed while keeping particle counts proportional to the dilution applied. After evaluation of the analytical figures of merit, the SP-ICPMS method exhibited excellent linearity (r2>0.999) in the range (1–25) × 104 particles mL−1 for 30, 50 and 80 nm nominal size Ag-NPs standards. The precision in terms of repeatability was studied according to the RSDs of the measured size and particle number concentration values and a t-test (p = 95%) at the two intermediate concentration levels was applied to determine the bias of SP-ICPMS size values compared to reference values. The method showed good repeatability and an overall acceptable bias in the studied concentration range. The experimental minimum detectable size for Ag-NPs ranged between 12 and 15 nm. Additionally, results derived from direct SP-ICPMS analysis were compared to the results conducted for fractions collected by asymmetric flow-field flow fractionation and supernatant fractions after centrifugal filtration. The method has been successfully applied to determine the presence of Ag-NPs in lake water; tap water; tap water filtered by a filter jar; seven different liquid silver-based consumer products; and migration solutions (pure water and sweat simulant) from plasters. Results obtained by SP-ICPMS were supported by transmission electron microscopy and energy dispersive spectroscopy characterisation, suggesting that the proposed methodology can be applied as a positive screening test in the simultaneous quantification and size characterisation of Ag-NPs in samples of environmental interest. © 2017
publishDate 2017
dc.date.none.fl_str_mv 2017
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/291932
url http://hdl.handle.net/10261/291932
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Departamento de Medio Ambiente y Agronomía
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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