Put a drop of fixed cells in water or uranyl acetate on the coverslip and let settle for 5-10 min. Many cells will detach from the coverslips during the dehydration procedure. This can be minimized if solutions are removed with a pipette held vertically over the specimens. Dry cells using a critical point drying apparatus and CO 2 . Use a cover-slip holder designed for the dryer or prop the coverslips on a plastic separator removed from a typical microscope slide box.
Store specimens in a dry container.