A PORTABLE APPARATUS FOR THE DETERMINATION OF TRITIUM IN BODY FLUIDS AND AQUEOUS SOLUTIONS

摘要

A small apparatus of adequate sensitivity and more portable than that described in Report LA-1678 has been developed for the determination of tritium in body fluids and aqueous solutions. The entire system is adaptable to operation by untrained personnel.nThe small glass vacuum manifold and ionization chamber are evacuated by means of water aspiration and filled to atmospheric pressure with a mixture of hydrogen-tritium gas. The hydrogen-tritium mixture is evolved by dropping a liquid (sputum, urine, blood, or water) onto metallic calcium and passing the gas through a drying column filled with indicating Diorite.