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Nanomaterials 2012, 2(1), 15-30; doi:10.3390/nano2010015
Article

Accurate Size and Size-Distribution Determination of Polystyrene Latex Nanoparticles in Aqueous Medium Using Dynamic Light Scattering and Asymmetrical Flow Field Flow Fractionation with Multi-Angle Light Scattering

* ,
,
 and
Polymer Standards Section Japan (PSSJ), Particle Measurement Section (PMS), National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
* Author to whom correspondence should be addressed.
Received: 24 November 2011 / Revised: 17 December 2011 / Accepted: 26 December 2011 / Published: 5 January 2012
(This article belongs to the Special Issue From Molecules to Nanomaterials)
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Abstract

Accurate determination of the intensity-average diameter of polystyrene latex (PS-latex) by dynamic light scattering (DLS) was carried out through extrapolation of both the concentration of PS-latex and the observed scattering angle. Intensity-average diameter and size distribution were reliably determined by asymmetric flow field flow fractionation (AFFFF) using multi-angle light scattering (MALS) with consideration of band broadening in AFFFF separation. The intensity-average diameter determined by DLS and AFFFF-MALS agreed well within the estimated uncertainties, although the size distribution of PS-latex determined by DLS was less reliable in comparison with that determined by AFFFF-MALS.
Keywords: asymmetric flow field flow fractionation; multi-angle light scattering; dynamic light scattering; nanoparticle; polystyrene latex asymmetric flow field flow fractionation; multi-angle light scattering; dynamic light scattering; nanoparticle; polystyrene latex
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Kato, H.; Nakamura, A.; Takahashi, K.; Kinugasa, S. Accurate Size and Size-Distribution Determination of Polystyrene Latex Nanoparticles in Aqueous Medium Using Dynamic Light Scattering and Asymmetrical Flow Field Flow Fractionation with Multi-Angle Light Scattering. Nanomaterials 2012, 2, 15-30.

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