Science, Vol 197, Issue 4300, 277-278
Copyright © 1977 by American Association for the Advancement of Science
Proton-induced x-ray emission analysis of single human hair roots
EC Henley,
ME Kassouny,
and
JW Nelson
Collimated beams of 3.75 million electron volt protons were used to examine a 2-millimeter length of the root end of human hair; the concentrations of some hair root elements were correlated with the results of standard clinical assays of blood samples. The technique should be useful for the analysis of micro amounts of biological tissue.