NDLI: Challenges in the size analysis of a silica nanoparticle mixture as candidate certified reference material

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Challenges in the size analysis of a silica nanoparticle mixture as candidate certified reference material

Content Provider	Semantic Scholar
Author	Kestens, Vikram Herrmann, Jan Coleman, Victoria Minelli, Caterina Clifford, Charles A. Temmerman, Pieter-Jan De Junjie, Liu Babick, Frank Cölfen, Helmut
Copyright Year	2016
Abstract	A new certified reference material for quality control of nanoparticle size analysis methods has been developed and produced by the Institute for Reference Materials and Measurements of the European Commission's Joint Research Centre. The material, ERM-FD102, consists of an aqueous suspension of a mixture of silica nanoparticle populations of distinct particle size and origin. The characterisation relied on an interlaboratory comparison study in which 30 laboratories of demonstrated competence participated with a variety of techniques for particle size analysis. After scrutinising the received datasets, certified and indicative values for different method-defined equivalent diameters that are specific for dynamic light scattering (DLS), centrifugal liquid sedimentation (CLS), scanning and transmission electron microscopy (SEM and TEM), atomic force microscopy (AFM), particle tracking analysis (PTA) and asymmetrical-flow field-flow fractionation (AF4) were assigned. The value assignment was a particular challenge because metrological concepts were not always interpreted uniformly across all participating laboratories. This paper presents the main elements and results of the ERM-FD102 characterisation study and discusses in particular the key issues of measurand definition and the estimation of measurement uncertainty.
Starting Page	238
Ending Page	247
Page Count	10
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://kops.uni-konstanz.de/bitstream/handle/123456789/34974/Kestens_0-350402.pdf?isAllowed=y&sequence=3
Alternate Webpage(s)	https://kops.uni-konstanz.de/bitstream/handle/123456789/34974/Kestens_0-350402.pdf?isAllowed=y&sequence=3
PubMed reference number	27441027v1
Volume Number	18
Journal	Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology
Language	English
Access Restriction	Open
Subject Keyword	Artificial nanoparticles Diameter (qualifier value) Fractionation, Field Flow Laboratory Microscopy, Atomic Force Particle Size PersonNameUse - assigned Photon Correlation Spectroscopy Sedimentation procedure Silicon Dioxide Suspensions Transmission Electron Microscopy erm protein, zebrafish
Content Type	Text
Resource Type	Article

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