Title: Separation and characterization of gold nanoparticle mixtures by flow-field-flow fractionation
Authors: CALZOLAI LUIGIGILLILAND DouglasPASCUAL GARCIA CESARROSSI Francois
Citation: JOURNAL OF CHROMATOGRAPHY A vol. 1218 no. 27 p. 4234-4239
Publisher: ELSEVIER SCIENCE BV
Publication Year: 2011
JRC N°: JRC60499
ISSN: 0021-9673
URI: http://www.sciencedirect.com/science/article/pii/S0021967311000641
http://publications.jrc.ec.europa.eu/repository/handle/JRC60499
DOI: 10.1016/j.chroma.2011.01.017
Type: Articles in periodicals and books
Abstract: We show that using asymmetric flow field flow fractionation it is possible to separate and characterize very low quantities of gold nanoparticle (AuNP) mixtures of various sizes in the 5-60 nm range for which simple dynamic light scattering measurements give misleading information. The size of the collected nanoparticles fractions can be determined both in solution and in the dry state, and their surface chemistry characterized by NMR. This method will find widespread applications both in the process of ¿size purification¿ after the synthesis of AuNP and in the identification and characterization of AuNP in consumer products such as cosmetics.
JRC Directorate:Institute for Health and Consumer Protection Historical Collection

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