Featured Microscopist: Spike (M.I.) Walker

Vitamin C Crystallites

Vitamin C crystallites

Vitamin C crystallized from aqueous solution. The photomicrograph was captured with a planapochromatic 4x/0.16 NA objective utilizing a low-power achromatic condenser. Illumination was provided by a 12-volt, 100-watt lamp using a Zeiss Ultraphot III microscope equipped with an automatic 35 millimeter photohead. The parallel yellow lines mark the abrupt changes in the rate of crystal growth (producing very much finer crystals) caused by breathing on the preparation at 60 second intervals. Photographed with Fujichrome Velvia. (12.5x)


Text and graphics for this article are
© 2000-2022 by Spike (M. I.) Walker.
All Rights Reserved under copyright law.
© 1995-2022 by Michael W. Davidson and The Florida State University. All Rights Reserved. No images, graphics, software, scripts, or applets may be reproduced or used in any manner without permission from the copyright holders. Use of this website means you agree to all of the Legal Terms and Conditions set forth by the owners.
This website is maintained by our
Graphics & Web Programming Team
in collaboration with Optical Microscopy at the
National High Magnetic Field Laboratory.
Last modification: Monday, Dec 01, 2003 at 01:54 PM
Access Count Since November 18, 2000: 7816