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韧致辐射法同时测量90Sr和90Y
示踪剂 韧致辐射 Sr-Y 二(2-乙基已基)磷酸
2009/12/24
本工作提出了用韧致辐射法同时测量样品中90Sr和90Y的设想。采用二(2-乙基已基)磷酸萃取制备无90Y的90Sr溶液，应用阱型NaI(Tl)探测器进行跟踪测量，得到90Sr与90Y探测效率比k。根据k值，跟踪测量未知样品，可以得到样品中90Sr和90Y的量。因此可以直接用90Sr -90Y作为Y的示踪剂。
Determination of 90Sr Accumulation in Human Teeth
Tooth 90Sr 90Y Calcium Flame atomic absorption spectrometer
2010/4/21
The accumulation of 90Sr in decayed or exfoliated human teeth was investigated by ultra low level beta counting. Fuming nitric acid and the necessary carriers and reagents were used for dissolving the...