Biophysics of cell separations

Abstract
To the Chemist, it has long been second nature to work with separate, purified substances. Biochemists and molecular biologists have now largely achieved the same working position, with their powerful separation techniques of ultracentrifugation, electrophoresis, chromatography and the like. For the cell biologists, it is a much more recent phenomenon that widespread attention is being directed towards quantitative measurement of properties in isolated, homogeneous cell types. The richness and diversity of cell systems beg for cleverness on the part of the experimenter.