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QX3 Digital Image Gallery
Polarized Light
Vitamin C
Vitamin C is one of the most photographed chemicals under the microscope due, in part, to the simplicity of forming nice crystals. We have examined several preparations of vitamin C crystals made from melt-recrystallized pure samples of the vitamin.
Polarized light images were captured using an Intel Play QX3 computer microscope modified for crossed polarized illumination. Additional light was applied to the specimens using light pipes from a Dolan-Jenner Model 180 fiber optics illuminator containing a 150 watt projection lamp. A 5/16-inch hole was drilled into the light mixing chamber at the base of the microscope and the light pipe was pointed towards the far wall of the chamber to increase illumination.
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