超热中子活化法测定碘和溴

Epithermal Neutron Activation Analysis of Iodine and Bromine

介绍了采用微型反应堆超热中子活化分析膳食样品中Ｉ和Ｂｒ的方法。讨论了热中子屏蔽材料的选择、干扰扣除等问题，计算了不同样品的探测极限及标准偏差。对几种标样进行分析，其结果与推荐值相符。

odine and bromine in foods(grain, beans ,potato,meat,egg,aquatic product,milk,vegetables,fruit, sugar and water )are determined by epithermal neutron activation analysis on aminiatllre neutron source reactor.The selection of shielding material for thermal neutron and cor-rection for interferences are discussed.The detection limit of this method is calculated.Themethod has been tested on some reference materials and the results agreed with the recommendedvalues.