TY - JOUR
AU - Kim,  E.
AB - This report describes the environmental sample treatment techniques for 14 C measurement with liquid scintillation counter. The groundwater sample of about 80 liters was collected from well and inorganic carbon was removed by acidification and recirculated gas stripping with the extraction efficiency of more than 98%. The biological samples were freeze-dried and combusted to carbon dioxide in high pressure combustion unit with a combustion efficiency of nearly 99%. The 14 CO 2 in the stack effluents was collected by an air bubbler with a collection efficiency of more than 99% for a sampling time of two weeks. Sampling of 14 C in reduced form also has been done by passing the gases through a tube furnace with Pt/Al and Pd/Al catalyst. Active and passive sampling methods for atmospheric 14 C measurements were compared in detail, and it could be concluded that the uncertainty associated with passive sampling method was quite acceptable for environmental monitoring. The CO 2 trapped in NaOH was precipitated as BaCO 3 , and subsequently reconverted to CO 2 for environmental samples and transferred to Carbo-Sorb E TM for liquid scintillation counting. In case higher precision is the deciding factor, benzene synthesis would be employed with home-made benzene synthesizer.
TI - Sample treatment techniques for the determination of environmental radiocarbon in a nuclear power station area
JF - Journal of Radioanalytical and Nuclear Chemistry
DO - 10.1007/BF02349064
DA - 1999-03-01
UR - https://www.deepdyve.com/lp/springer-journals/sample-treatment-techniques-for-the-determination-of-environmental-0yDA0d0AMK
SP - 533
EP - 538
VL - 239
IS - 3
DP - DeepDyve
ER -