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Measurement of the diffusion coefficient of ethanol in agarose gel beads: A reproducibility study

โœ Scribed by Bengt A Westrin

Book ID
104648645
Publisher
Springer-Verlag
Year
1990
Tongue
English
Weight
322 KB
Volume
4
Category
Article
ISSN
0951-208X

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โœฆ Synopsis

The diffusion coefficient of ethanol in a 4 w/w% agarose gel at 25OC was measured, using the methods of unsteady-state diffusion into, and out of, gel beads dispersed in a solution of finite volume. The results (8.0 -9.5x10w6 cm2/s> agreed well with available theory. The results of method "out" were more reproducible than method "in", but the standard deviation was in no case lower than 3.3%.

๐Ÿ“œ SIMILAR VOLUMES

Measurement of diffusion coefficients in
Measurement of diffusion coefficients in gel beads: random and systematic errors
โœ B.A. Westrin; G. Zacchi ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 658 KB

The method of calculating diffusion coefficients in gel beads based on transient experiments of solute uptake from a finite volume has been studied theoretically. Monte Carlo simulation was used to investigate the effect of random errors in the concentration measurements. The influence of sampling f