Publikation:

Sedimentation measurements with the analytical ultracentrifuge with absorption optics: influence of Mie scattering and absorption of the particles

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Datum

2011

Autor:innen

Lechner, Manfred Dieter
Cölfen, Helmut
Mittal, Vikas
Völkel, Antje
Wohlleben, Wendel

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URI (zitierfähiger Link)
http://nbn-resolving.de/urn:nbn:de:bsz:352-187454
DOI (zitierfähiger Link)
https://doi.org/10.1007/s00396-011-2440-x
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Chemie: Publikationen
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Published

Erschienen in

Colloid and Polymer Science. 2011, 289(10), pp. 1145-1155. ISSN 0303-402X. Available under: doi: 10.1007/s00396-011-2440-x

Zusammenfassung

Analytical ultracentrifugation is one of the most powerful methods for the characterization of nanoparticles since the days of its invention due to its high resolution and statistical significance. Latexes with different sizes and their mixtures have been measured by sedimentation with the analytical ultracentrifuge (AUC) OPTIMA XL-I (Beckman Coulter, Palo Alto, CA, USA) with interference optics at 1 0= 675 nm and absorption optics at 1 0=546 and 263 nm. Additionally, a blue pigment with high absorption characteristic at visible light has been investigated. A large influence of Mie scattering and Mie absorption on the particle size distribution with respect to absorption optics and samples with moderate or broad size distribution is observed. Therefore, the consideration of the Mie scattering effect is compulsory for most AUC measurements of nanoparticles with absorption optics.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
540 Chemie

Schlagwörter

Analytical ultracentrifugation, Particle size distribution, Mie scattering, Absorption, Extinction, Mie correction

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ISO 690LECHNER, Manfred Dieter, Helmut CÖLFEN, Vikas MITTAL, Antje VÖLKEL, Wendel WOHLLEBEN, 2011. Sedimentation measurements with the analytical ultracentrifuge with absorption optics: influence of Mie scattering and absorption of the particles. In: Colloid and Polymer Science. 2011, 289(10), pp. 1145-1155. ISSN 0303-402X. Available under: doi: 10.1007/s00396-011-2440-x
BibTex
@article{Lechner2011Sedim-18745,
  year={2011},
  doi={10.1007/s00396-011-2440-x},
  title={Sedimentation measurements with the analytical ultracentrifuge with absorption optics: influence of Mie scattering and absorption of the particles},
  number={10},
  volume={289},
  issn={0303-402X},
  journal={Colloid and Polymer Science},
  pages={1145--1155},
  author={Lechner, Manfred Dieter and Cölfen, Helmut and Mittal, Vikas and Völkel, Antje and Wohlleben, Wendel}
}
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