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Determination of the refractive index of water-dispersible granules for use in laser diffraction experiments

Hans Saveyn UGent, Dries Mermuys, Olivier Thas UGent and Paul Van Der Meeren UGent (2002) PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION. 19(6). p.426-432
abstract
Modern laser light scattering equipment can cover a very broad particle size range by using complex algorithms, such as the Mie theory. A disadvantage of this theory, however, is that it requires the knowledge of the refractive index of the particles, which is not straightforward for powdered organic substances. In this study, thiram, a common dithiocarbamate fungicide, was used as a model compound. In a first part, a method was elaborated to determine the refractive index, based on refractive index measurements of solutions of the compound of interest in a range of solvents. Two different extrapolation techniques were compared. Both techniques were validated by applying them to the determination of the refractive indices of poly(vinyl acetate) and poly(methyl methacrylate). Secondly, the influence of the refractive index value on the generated particle size distribution in the laser diffraction software was investigated. It was observed that widely different particle size distributions can be generated by the laser diffraction software for a single experimental data-set. Therefore, accurate refractive index information is required to obtain reliable particle size distribution results.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
PARTICLE, differential refractometry, SCATTERING, submicron particles, refractive index, laser diffraction, laser light scattering
journal title
PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION
Part. Part. Syst. Charact.
volume
19
issue
6
pages
426 - 432
Web of Science type
Article
Web of Science id
000180306700007
JCR category
MATERIALS SCIENCE, CHARACTERIZATION & TESTING
JCR impact factor
0.633 (2002)
JCR rank
6/23 (2002)
JCR quartile
1 (2002)
ISSN
0934-0866
DOI
10.1002/ppsc.200290006
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
363657
handle
http://hdl.handle.net/1854/LU-363657
date created
2005-06-07 16:43:00
date last changed
2016-12-19 15:42:33
@article{363657,
  abstract     = {Modern laser light scattering equipment can cover a very broad particle size range by using complex algorithms, such as the Mie theory. A disadvantage of this theory, however, is that it requires the knowledge of the refractive index of the particles, which is not straightforward for powdered organic substances. In this study, thiram, a common dithiocarbamate fungicide, was used as a model compound. In a first part, a method was elaborated to determine the refractive index, based on refractive index measurements of solutions of the compound of interest in a range of solvents. Two different extrapolation techniques were compared. Both techniques were validated by applying them to the determination of the refractive indices of poly(vinyl acetate) and poly(methyl methacrylate). Secondly, the influence of the refractive index value on the generated particle size distribution in the laser diffraction software was investigated. It was observed that widely different particle size distributions can be generated by the laser diffraction software for a single experimental data-set. Therefore, accurate refractive index information is required to obtain reliable particle size distribution results.},
  author       = {Saveyn, Hans and Mermuys, Dries and Thas, Olivier and Van Der Meeren, Paul},
  issn         = {0934-0866},
  journal      = {PARTICLE \& PARTICLE SYSTEMS CHARACTERIZATION},
  keyword      = {PARTICLE,differential refractometry,SCATTERING,submicron particles,refractive index,laser diffraction,laser light scattering},
  language     = {eng},
  number       = {6},
  pages        = {426--432},
  title        = {Determination of the refractive index of water-dispersible granules for use in laser diffraction experiments},
  url          = {http://dx.doi.org/10.1002/ppsc.200290006},
  volume       = {19},
  year         = {2002},
}

Chicago
Saveyn, Hans, Dries Mermuys, Olivier Thas, and Paul Van Der Meeren. 2002. “Determination of the Refractive Index of Water-dispersible Granules for Use in Laser Diffraction Experiments.” Particle & Particle Systems Characterization 19 (6): 426–432.
APA
Saveyn, H., Mermuys, D., Thas, O., & Van Der Meeren, P. (2002). Determination of the refractive index of water-dispersible granules for use in laser diffraction experiments. PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION, 19(6), 426–432.
Vancouver
1.
Saveyn H, Mermuys D, Thas O, Van Der Meeren P. Determination of the refractive index of water-dispersible granules for use in laser diffraction experiments. PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION. 2002;19(6):426–32.
MLA
Saveyn, Hans, Dries Mermuys, Olivier Thas, et al. “Determination of the Refractive Index of Water-dispersible Granules for Use in Laser Diffraction Experiments.” PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION 19.6 (2002): 426–432. Print.