1926
DOI: 10.1007/bf02181089
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Die Sichtbarmachung subvisibler Gebilde

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1928
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Cited by 10 publications
(1 citation statement)
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“…Krueger and Ritter (1930), using acetic acid collodion membranes, found a more or less constant difference, 50 to 75 p,p,, between the pore sizes indicated by the filtration of standardized sols on the one hand, and the values calculated from Poiseuille's law on the other. Bechhold (1931) gave the relationship between the sizes of retained micro-organisms (bacteria and viruses) and the maximum pore size of filters (filter candles and membrane filters) to be 1/8 to 1/15, expressed as the ratio of the respective diameters. No special endeavour was made in these cases to ensure that optimum filtration conditions were being used, as regards both pressure and medium, and hence a greater disparity between particle size and pore size is to be expected than that obtained in the present experiments.…”
Section: U Ltrajiltration As a P P Lie D In B Iologicalmentioning
confidence: 99%
“…Krueger and Ritter (1930), using acetic acid collodion membranes, found a more or less constant difference, 50 to 75 p,p,, between the pore sizes indicated by the filtration of standardized sols on the one hand, and the values calculated from Poiseuille's law on the other. Bechhold (1931) gave the relationship between the sizes of retained micro-organisms (bacteria and viruses) and the maximum pore size of filters (filter candles and membrane filters) to be 1/8 to 1/15, expressed as the ratio of the respective diameters. No special endeavour was made in these cases to ensure that optimum filtration conditions were being used, as regards both pressure and medium, and hence a greater disparity between particle size and pore size is to be expected than that obtained in the present experiments.…”
Section: U Ltrajiltration As a P P Lie D In B Iologicalmentioning
confidence: 99%