裂变径迹法测铀,具有灵敏度高、铀含量与径迹数线性关系好以及不受其它放射性元素干扰等优点。我们用这种方法分析了华南地区3701矿床ZK1005号钻孔的岩心样品,研究了裂变径迹法测铀在铀矿勘探中的应用效果。 1.分析方法 先将样品粉碎,过筛(<160目)、称量,再用盐酸和过氧化氢溶液溶矿。具体方法如下:取0.5克矿粉放在100毫升烧杯中,稍用水浸湿,再加入10毫升盐酸和2毫升过 Fission track method for the determination of uranium, with high sensitivity, uranium content and track number of linear relationship is good and free from other radioactive elements such as interference. Using this method, we analyzed the core samples of ZK1005 borehole from 3701 deposit in South China and studied the application of fission track method to uranium exploration. 1. Analytical method The sample is first crushed, sieved (<160 mesh), weighed, and then dissolved in hydrochloric acid and hydrogen peroxide solution. Specific methods are as follows: Take 0.5 grams of ore on a 100 ml beaker, slightly wet with water, then add 10 ml of hydrochloric acid and 2 ml over