ABSTRACT
A review to determine the gross alpha and beta in water by using liquid scintillation spectrometry is presented. The main factors that influence the accuracy and repeatability of the analytical results are: thermal pre-concentration, acid type, counting window, and calibration standard. Accordingly, an analytical procedure was established and carried out to samples of the public water supplies in the state of Goiás, Brazil, to evaluate the gross alpha and beta radioactivities. The statistical summary of data was conducted by using analysis methods of censored data. The results comply with the guideline values from the Brazilian Department of Health.
Keywords:
liquid scintillation counting; gross alpha; gross beta; water