生体中のアルミニウムの放射化分析(平成16年度京大原子炉実験所専門研究会講演要旨,研究紹介)

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The determination of Al by INAA in living matter contains some problems; 1) the enclosing bag by made polyethylene include phosphorus and silicon as an additions. 2) The living matter includes the abundant of phosphorus and silicon in matter. These elements interfere the Al determination by ^<31>P(n,a) and ^<28>Si(n,P) reactions: the interference factors from each elements were 1×10^<-3> and 3×10^<-3>, respectively. The enclosing bags used in conventional experiments include the impurities equivalent to Al value from 0.2 to 116 μg/g. The corrections for biological standard materials were very excellent within the factor 10^3 of the contribution rate from interference elements. In the case of practical human tissues, though the contributions from silicon were negligible, the interference from phosphorus was over 50 % except for lung. The correction for interference reaction for Al determination in living matter is indispensable.
放射化分析研究会の論文