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Science 12 February 1960:
Vol. 131. no. 3398, pp. 414 - 415
DOI: 10.1126/science.131.3398.414
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Articles

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

Jacob Shapira 1 and William H. Perkins 1

1 Radioisotope Service, Veterans Administration Hospital, Little Rock, Arkansas

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.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)