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Number concentration of gold nanoparticles in suspension: SAXS and spICPMS as traceable methods compared to laboratory methods
PTB Physikalisch–Technische Bundesanstalt, Germany.
PTB Physikalisch–Technische Bundesanstalt, Germany.
PTB Physikalisch–Technische Bundesanstalt, Germany.
PTB Physikalisch–Technische Bundesanstalt, Germany.
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2019 (Engelska)Ingår i: Nanomaterials, ISSN 2079-4991, Vol. 9, nr 4, artikel-id 502Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The industrial exploitation of high value nanoparticles is in need of robust measurement methods to increase the control over product manufacturing and to implement quality assurance. InNanoPart, a European metrology project responded to these needs by developing methods for the measurement of particle size, concentration, agglomeration, surface chemistry and shell thickness. This paper illustrates the advancements this project produced for the traceable measurement of nanoparticle number concentration in liquids through small angle X-ray scattering (SAXS) and single particle inductively coupled plasma mass spectrometry (spICPMS). It also details the validation of a range of laboratory methods, including particle tracking analysis (PTA), dynamic light scattering (DLS), differential centrifugal sedimentation (DCS), ultraviolet visible spectroscopy (UV-vis) and electrospray-differential mobility analysis with a condensation particle counter (ES-DMA-CPC). We used a set of spherical gold nanoparticles with nominal diameters between 10 nm and 100 nm and discuss the results from the various techniques along with the associated uncertainty budgets.

Ort, förlag, år, upplaga, sidor
MDPI AG , 2019. Vol. 9, nr 4, artikel-id 502
Nyckelord [en]
Comparison, Laboratory methods, Nanoparticles, Number concentration, Suspensions, Traceability
Nationell ämneskategori
Naturvetenskap
Identifikatorer
URN: urn:nbn:se:ri:diva-38900DOI: 10.3390/nano9040502Scopus ID: 2-s2.0-85065464814OAI: oai:DiVA.org:ri-38900DiVA, id: diva2:1319848
Anmärkning

; Funding details: Singapore Eye Research Institute, 15.0205; Funding details: Department for Business, Energy and Industrial Strategy; Funding details: National Institute of Standards and Technology; Funding text 1: Funding: This work was funded by the 14IND12 InNanoPart project of the EMPIR programme co-financed by the EMPIR Participating States and by the European Union’s Horizon 2020 research and innovation programme, as well as the National Measurement System of the UK Department for Business, Energy and Industrial Strategy (BEIS). METAS gratefully acknowledges funding from the Swiss State Secretariat for Education, Research and lnnovation (SERI) under contract number 15.0205.; Funding text 2: Analysis of variance UK Department for Bussiness, Energy and Industrial Strategy Berliner Elektronenspeicherring für Synchrotronstrahlung Differential Centrifugal Sedimentation Dansk Fundamental Metrologi Dienst Landbouwkundig Onderzoek Dynamic light scattering Electron multiplying charge coupled device European Metrology Programme for Innovation and Research Electrospray-differential mobility analysis with a condensation particle counter Four-crystal monochromator Raman spectroscopy with hollow fiber Helmholtz–Zentrum Berlin für Materialien und Energie GmbH Light emitting diode Laboratory of government chemist Federal Institute of Metrology of Switzerland Mass flow meter National Institute of Standards and Technology National Physical Laboratory Polystyrene Particle tracking analysis Physikalisch-Technische Bundesanstalt Polyvinyl alcohol Research Institutes of Sweden Small-angle X-ray scattering Swiss State Secretariat for Education, Research and Innovation Systeme International Single particle inductively coupled plasma mass spectroscopy Transmission electron microscopy Transient analysis Ultra-violet visible spectroscopy

Tillgänglig från: 2019-06-03 Skapad: 2019-06-03 Senast uppdaterad: 2019-06-03Bibliografiskt granskad

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