Grinding Dry Ice

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Title: Grinding Dry Ice
Description: Dry ice is processed by a technician through the grinder to bring internal components below freezing in order to keep the specimens frozen during grinding. This protects the chemical integrity of the specimen. Technicians sort and grind natural product samples kept by the National Cancer Institute's Natural Products Branch at the Frederick National Laboratory for Cancer Research. NCI has the largest program to collect materials worldwide from marine, plant, and microbial sources so they may be studied for possible medical uses.
Topics/Categories: People -- Researcher
Science and Technology -- Laboratory Techniques/Equipment
Type: Color, Photo (JPEG format)
Source: National Cancer Institute
Creator: Daniel Sone (Photographer)
Date Created: February 23, 2011
Date Added: June 3, 2014
Reuse Restrictions: None - This image is in the public domain and can be freely reused. Please credit the source and, where possible, the creator listed above.