Liquid Scintillation Counting of Aqueous Solutions of Carbon-14 and Tritium

Science  12 Feb 1960:
Vol. 131, Issue 3398, pp. 414-415
DOI: 10.1126/science.131.3398.414


A method is reported whereby aqueous solutions containing weak beta emitters are dispersed as stable emulsions in liquid scintillator counting solutions. This permits the routine counting, with about 10-percent efficiency, of large numbers of samples containing tritium. Self-absorption does not present a problem when less than 5 percent aqueous phase is present.