Abstract
IT has been highly desirable to develop a simple device everywhere available for accurately measuring sedimentation equilibrium of particles of all sizes from the smallest molecules in solution to the largest colloids or filter-passing organisms. We have used one method of limited scope throughout the past year for measuring the molecular weight of sucrose within 5 per cent in a one-piece hollow air-driven rotor1.
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See McBain, NATURE, 135, 831 (1935) ; and McBain and Stuewer, Kolloid-Z., 74, 10 (1936) ; a specimen of the latest model was deposited with Prof. Dr. Wolfgang Ostwald, Kolloidchemische Gesellschaft, Leipzig, in July 1936.
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MCBAIN, J., ALVAREZ-TOSTADO, C. Sedimentation Equilibrium in the Simplest Air-driven Tops. Nature 139, 1066 (1937). https://doi.org/10.1038/1391066a0
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DOI: https://doi.org/10.1038/1391066a0
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