Determination of selected natural radionuclide concentrations in southwestern Caspian groundwater using liquid scintillation counting

作者：Jowzaee Sedigheh^*

来源：Radiation Protection Dosimetry, 2013, 157(2): 234-241.

DOI：10.1093/rpd/nct132

Twenty-seven spring water samples from southwestern shore of the Caspian Sea were analysed for their contents of gross alpha and beta, Rn-222, Ra-226 and total uranium using a liquid scintillation counter (LSC). Other methods such as the Environmental Protection Agency (EPA) method 900 for gross alpha/beta measurement, radon emanation for Ra-226 determination and laser fluorimetry for total uranium content were applied to make a comparison with the LSC technique. The levels of measured Rn-222 and Ra-226 range from 0.5 to 54 Bq l(1) and from 14 to 297 mBq l(1), respectively. The levels of gross alpha and beta are from 16 mBq l(1) to 1.0 Bq l(1) and from 22 to 630 mBq l(1), respectively. The total uranium contents are from 3 to 66 mBq l(1). It has been shown that the simple liquid scintillation counting technique could be applied conveniently for such studies where analysis of numerous samples is concerned.

• 出版日期2013-12