Nanoparticle size distribution quantification: results of a small-angle X-ray scattering inter-laboratory comparison.

ABSTRACT: This paper presents the first worldwide inter-laboratory comparison of small-angle X-ray scattering (SAXS) for nanoparticle sizing. The measurands in this comparison are the mean particle radius, the width of the size distribution and the particle concentration. The investigated sample consists of dispersed silver nanoparticles, surrounded by a stabilizing polymeric shell of poly(acrylic acid). The silver cores dominate the X-ray scattering pattern, leading to the determination of their radius size distribution using (i) the generalized indirect Fourier transformation method, (ii) classical model fitting using SASfit and (iii) a Monte Carlo fitting approach using McSAS. The application of these three methods to the collected data sets from the various laboratories produces co

SUBMITTER: Pauw BR 

PROVIDER: S-EPMC5627679 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature