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Diffusion measurement in gels

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Author

Summary, in English

Methods for measuring diffusion coefficients in gels are reviewed, and their capacities, limitations and requirements are briefly discussed. With four of these methods, i.e., the diaphragm cell, uptake/release from beads, holographic laser interferometry and nuclear magnetic resonance (FT-PGSE), a comparison is made with regard to accuracy and precision. The comparison is based on a number of studies in which the diffusion coefficient of ethanol in agarose gel has been measured. It is concluded that the diaphragm cell and nuclear magnetic resonance (FT-PGSE) are very accurate and precise.

Publishing year

1994

Language

English

Pages

189-199

Publication/Series

Journal of Controlled Release

Volume

30

Issue

3

Document type

Journal article review

Publisher

Elsevier

Topic

  • Chemical Engineering

Keywords

  • DIFFUSION
  • GEL
  • MEASUREMENT
  • ACCURACY
  • PRECISION

Status

Published

ISBN/ISSN/Other

  • ISSN: 1873-4995