Abstract
It is shown experimentally that, in principle, separations of macromolecular species are possible by differential migration in the flow of a solvent through a microcapillary tube (diameter less than ca. 10 μm). Compared to gel permeation chromatographic separations, hydrodynamic chromatographic separations are rapid and show little axial dispersion of the sample zones. The results are in a qualitative agreement with the theory of separation-by-flow, proposed by Guttmann and DiMarzio.
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