USP 751 is a pharmaceutical test designed to limit to an unobjectionable level the number and size of discrete metal particles that may occur in ophthalmic ointments. This test requires a very specific microscope system. Learn more about it here.
Different types of microscopes use different techniques to create images. These include light microscopes, confocal microscopes, electron microscopes, and x-ray microscopes. Learn the differences between these microscopes and which microscope is used for different applications.
Viewing the effectiveness of food packaging seals under the microscope is an important part of quality control. View images and the microscope system used here.