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

被引：71
|
作者：
Kato, Haruhisa [1 ]
Nakamura, Ayako [1 ]
Takahashi, Kayori [1 ]
Kinugasa, Shinichi [1 ]
机构：
[1] Natl Inst Adv Ind Sci & Technol, Polymer Stand Sect Japan PSSJ, Particle Measurement Sect PMS, Natl Metrol Inst Japan NMIJ, Tsukuba, Ibaraki 3058565, Japan
来源：
NANOMATERIALS | 2012年 / 2卷 / 01期
关键词：
asymmetric flow field flow fractionation; multi-angle light scattering; dynamic light scattering; nanoparticle; polystyrene latex; WATER; PARTICLES; DIFFUSION; TOXICITY;
D O I：
10.3390/nano2010015
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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.
引用
收藏
页码：15 / 30
页数：16
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