ULTRAFILTRATION THROUGH COLLODION MEMBRANES
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چکیده
منابع مشابه
Ultrafiltration through Collodion Membranes
It is obvious that the factors considered in this paper render data obtained by ultrafiltration open to criticism unless they are checked by other methods and precautions are taken for the elimination of the vitiating effects which have been described. As regards the mechanism of ultrafiltration, the view of a sieve-like action as most experimental evidence indicates, is adequate, if all the fa...
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THE behaviours of protein solutions when filtered through membranes of graded porosities under different conditions of PH and dispersion medium have been further studied in the case of haemocyanin (Helix pomatia), edestin and egg albumin. The particle sizes of these proteins in dilute solution have been determined by Svedberg and his co-workers by the method of ultracentrifugal analysis, the re...
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An apparatus for the production of graded collodion membranes is described. The theoretical considerations of calibration are discussed in relation to the demonstrable structure and statistical characteristics of the membranes. A new definition of an "end-point" is suggested.
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Marked differences were noted among 14 antibiotics in their filterability through collodion (nitrated cellulose) membranes. The findings could not be attributed to differences in molecular weight or degree of serum protein binding, although the latter factor imposed an additional restraint on the passage of certain agents. Poorly filtered antibiotics appeared to be absorbed by the collodion. So...
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1. It had been shown in previous papers that when a salt solution is separated from pure water by a collodion membrane, water diffuses through the membrane as if it were positively charged and as if it were attracted by the anion of the salt in solution and repelled by the cation with a force increasing with the valency. In this paper, measurements of the P.D. across the membrane (E) are given,...
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ژورنال
عنوان ژورنال: Journal of General Physiology
سال: 1926
ISSN: 1540-7748,0022-1295
DOI: 10.1085/jgp.9.6.813