Standardised collodion membranes in low pressure ultrafiltration
نویسندگان
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...
متن کاملCharacteristics of Collodion Membranes for Ultrafiltration
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.
متن کاملXvi. the Ultrafiltration of Proteins through Graded Collodion Membranes
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...
متن کاملProtein Films on Collodion Membranes
1. Collodion membranes of high permeability were found to adsorb weighable amounts of gelatin and egg albumin from solution at 37 degrees C. 2. The effect of protein concentration could be expressed fairly well by a hyperbolic equation proposed by Langmuir for the adsorption of gases by a plane surface, while the usual parabolic adsorption equation of Freundlich did not fit the results. 3. In c...
متن کاملIdentification of key factors affecting the organic fouling on low-pressure ultrafiltration membranes
The fouling behavior of the hollow fiber ultrafiltration (UF) membrane by the mixtures of dissolved organic matters (DOMs) has been systematically investigated. The organic foulants included humic acid (HA), bovine serum albumin (BSA) and sodium alginate (SA), which represented humic substances, proteins and polysaccharides, respectively. According to the experimental results, the filtration pr...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1933
ISSN: 0306-3283
DOI: 10.1042/bj0271775