FORMING THE IMAGE OF THE SURFACE OF MEMBRANE FILTERS IN THE ELECTRON MICROSCOPE: A CONTRIBUTION
ARMY BIOLOGICAL LABS FREDERICK MD
Pagination or Media Count:
Membrane filters are partially permeable layers made of cellulose esters which are employed to separate coarsely dispersed and colloidal particle sizes from substances. The electron microscope is necessary in many cases in order to make visible the particles separated by the filter. Since the membrane filter by reason of its film thickness ranging from 50 to 200 microns is impermeable to electrons, preparation problems result, and it is to the solution of these that the work concerns.
- Pumps, Filters, Pipes, Tubing, Fittings and Valves