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Title: | Double Membrane Diaphragm Technique for Absolute Measurements of Diffusion Coefficients |
Authors: | Elrick, D. E. Smiles, D. E. Wooding, R. A. |
Keywords: | Chemistry Double Membrane Diaphragm Technique Absolute Measurements Diffusion Journal of the Chemical Society : Faraday Transaction - I |
Issue Date: | 1972 |
Publisher: | Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1972, 68 (4) |
Abstract: | A new technique for measuring diffusion coefficients utilizing two thin porous membranes separated by a spacer of known cross-sectional area and thickness is presented. The method permits absolute measurements of diffusion coefficients of chemical and biological materials in solution. The technique is based on the free-diffusion space between two membranes, thus avoiding the problems of solute-membrane interactions and tortuosity of the pore space that are present with single membrane diaphragms. Diffusion coefficient measurements of 5 x 10~4 M NaCl and 5 x 10-4 M KC1 arc in good agreement with values reported in the literature |
URI: | http://dspace.bits-pilani.ac.in:8080/jspui/handle/123456789/17288 |
Appears in Collections: | Journal Articles (before-1995) |
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591-599.pdf Restricted Access | 1.3 MB | Adobe PDF | View/Open Request a copy |
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