Cell differentiation based on absorption and scattering.

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Abstract
Improvements of the flow system allow calibrated cell length measurements down to less than 2 micron at a very high rate. An optical index match to plane viewing windows perpendicular to the optical axis in the flow system keeps the axial symmetry for forward scattered light. Cell size, axial light loss and scattering intensity within different angles were found to be powerful tools to differentiate cell populations. Red cells were analyzed according to various cell surface structures. Lymphocyte populations isolated from different parts of the lymphatic system in rats have been distinguished. Experimental tumor cells showed typical data pattern after different chemical treatments.

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