OBSERVATION OF AN EMULSION MICROSTRUCTURE WITH CRYO-FESEM

The observation of a microstructure of an oil-in-water type emulsion w as carried out using a cryo-scanning electron microscope with a field emission gun (cryo-FESEM). To prepare a flat cross section of the spec imen, a cryomicrotome was adopted after rapidly freezing the emulsion with slush nitrogen. The cryo-FESEM images revealed clearly that the e mulsion was composed of spherical lamellae. The preparation of cross s ections of frozen specimens with the cryomicrotome and their observati on by the cryo-FESEM were useful to clarify the microstructure of the emulsion.