microprobe -->
electron microprobe
medical dictionary

A technique of elemental analysis in the electron microscope based on spectral analysis of the scattered X-ray emission from the specimen induced by the electron beam. Using this technique it is possible to obtain quantitative data on, for example: the calcium concentration in different parts of a cell, but it is necessary to use ultra thin frozen sections.

This entry appears with permission from the Dictionary of Cell and Molecular Biology

(11 Mar 2008)