Determination of Ultralow Radium-226 Concentrations in Water

摘要

The method used to measure the radium-226 content of drinking water down to 0.01 pCi.l exp -1 was the emanation method combined with scintillation chambers, as proposed by Lucas. Results on 205 public water samples show a median value of 0.11 pCi.l exp -1 , and mineral waters have a median value of 1.7 pCi.l exp -1 . (ERA citation 09:000909)