A comparison of two methods used for determination of tritium concentration in urine samples by liquid scintillation counter

Background Tritium (3H) emits low-energy beta particles with a maximum energy of 18.6 keV. Liquid scintillation counting technique (LSC) is mostly used for the detection and quantification of low-energy emitters like H-3. The most widely used method to determine the level of tritium in humans is testing urine.