SUMMARY
A mounting method utilizing an indium substrate is described for preparing freeze‐dried cryosections of biological tissue for ion microscopic analysis. Using this procedure, a qualitative comparison between cryosection, conventional chemical, and freeze‐substitution specimen preparations is made with rat liver tissue. Practical ion yield variations in cryosections are found to be minimal (± 13% relative standard deviation) in tissue‐containing areas of rat liver and small intestine.
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