使用萃取闪烁鸡尾酒Polex™测定水中的（210）铅和（210）钋。
Determination of (210)Pb and (210)Po in water using the extractive scintillation cocktail Polex™.
作者信息
Landstetter Claudia, Hiegesberger Bernd, Sinojmeri Merita, Katzlberger Christian
机构信息
Austrian Agency for Health and Food Safety, Department of Radiation Protection and Radiochemistry, Spargelfeldstrasse 191, 1220 Vienna, Austria.
Austrian Agency for Health and Food Safety, Department of Radiation Protection and Radiochemistry, Spargelfeldstrasse 191, 1220 Vienna, Austria.
出版信息
Appl Radiat Isot. 2014 Nov;93:76-81. doi: 10.1016/j.apradiso.2014.04.014. Epub 2014 Apr 24.
Method validation was performed to achieve the accreditation for our determination method of (210)Pb and (210)Po in water. A Pb(NO3)2 carrier is added to the sample and lead is precipitated with Na2SxH2O. (210)Po is co-precipitated and the extractive scintillation cocktail Polex(™) is used to determine (210)Po and (210)Pb. Uranium is also extracted by Polex(™). It can be removed by washing the precipitate with 1% HNO3. The ingrowth of (210)Pb from (222)Rn during transportation time must be calculated. It has to be subtracted from the original (210)Pb in the sample and taken into account for the calculation of the lower limit of detection.
为使我们对水中(210)Pb和(210)Po的测定方法获得认可，进行了方法验证。向样品中加入Pb(NO3)2载体，铅用Na2SxH2O沉淀。(210)Po共沉淀，并用萃取闪烁鸡尾酒Polex(™)测定(210)Po和(210)Pb。铀也被Polex(™)萃取。可通过用1% HNO3洗涤沉淀将其除去。必须计算运输过程中(222)Rn产生的(210)Pb的增长。必须从样品中原来的(210)Pb中减去这一增长，并在计算检测下限中予以考虑。
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