Wallner Gabriele, Wagner Rosmarie, Katzlberger Christian
University of Vienna, Institut für Anorganische Chemie, Währingerstrasse 42, A-1090 Vienna, Austria.
J Environ Radioact. 2008 Jul;99(7):1090-4. doi: 10.1016/j.jenvrad.2007.12.021. Epub 2008 Feb 20.
Ten samples of Austrian mineral water were investigated with regard to the natural radionuclides (228)Ra, (226)Ra, (210)Pb, (210)Po, (238)U and (234)U. The radium isotopes as well as (210)Pb were measured by liquid scintillation counting (LSC) after separation on a membrane loaded with element-selective particles (Empore Radium Disks) and (210)Po was determined by alpha-spectroscopy after spontaneous deposition onto a copper planchette. Uranium was determined by ICP-MS as well as by alpha-spectroscopy after ion separation and microprecipitation with NdF(3). From the measured activity concentrations the committed effective doses for adults and babies were calculated and compared to the total indicative dose of 0.1 mSv/a given in the EC Drinking Water Directive as a maximum dose. The dominant portion of the committed effective dose was due to the radium isotopes; the dose from (228)Ra in most samples clearly exceeded the dose from (226)Ra.
对十个奥地利矿泉水样本进行了天然放射性核素（228）镭、（226）镭、（210）铅、（210）钋、（238）铀和（234）铀的调查。镭同位素以及（210）铅在装载有元素选择性颗粒的膜（Empore镭盘）上分离后通过液体闪烁计数（LSC）进行测量，（210）钋在自发沉积到铜样品盘上后通过α光谱法测定。铀通过电感耦合等离子体质谱法（ICP-MS）以及在离子分离并用NdF（3）进行微量沉淀后通过α光谱法测定。根据测得的活度浓度计算了成人和婴儿的待积有效剂量，并与欧盟饮用水指令中规定的0.1 mSv/a的总指示剂量作为最大剂量进行了比较。待积有效剂量的主要部分归因于镭同位素；大多数样本中（228）镭的剂量明显超过（226）镭的剂量。
