通过阳离子交换和液体闪烁计数法测定环境样品中的（90）锶。
Measurement of (90)Sr in environmental samples by cation-exchange and liquid scintillation counting.
作者信息
Amano H, Yanase N
机构信息
Department of Environmental Safety Research, Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken 319-11, Japan.
出版信息
Talanta. 1990 Jun;37(6):585-90. doi: 10.1016/0039-9140(90)80200-y.
A new method for the measurement of (90)Sr in environmental samples by cation-exchange and liquid scintillation counting is described. Strontium carbonate is purified by precipitation and ion-exchange, weighed for the determination of chemical yield, dissolved in hydrochloric acid and mixed with the liquid scintillator, Aquasol-2. Two channels of a low-background liquid scintillation counter are used to determine (90)Sr, (90)Y and (89)Sr, free from the effects of environmental tritium. The values of (90)Sr obtained by this method are in good agreement with those from ordinary (90)Y milking and the gas proportional counting method. The concentration of (90)Sr in the air at Tokai-mura in Japan has been measured by the new method.
本文描述了一种通过阳离子交换和液体闪烁计数法测量环境样品中（90）锶的新方法。碳酸锶通过沉淀和离子交换进行纯化，称重以测定化学产率，溶解于盐酸中并与液体闪烁体Aquasol-2混合。使用低本底液体闪烁计数器的两个通道来测定（90）锶、（90）钇和（89）锶，不受环境氚的影响。通过该方法获得的（90）锶值与普通（90）钇提取法和气体正比计数法得到的值高度一致。已用该新方法测量了日本东海村空气中（90）锶的浓度。
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