用裂变径迹法测定了铀矿普查现场水样的铀含量,在10~(-4)-10~(-8)g/1范围内,所得结果与荧光比色法和激光荧光法基本符合;对低钠含量样品(≤10~(-8)g/1),用其他方法不能给出确切数据,用裂变径迹法也能给出可供参考的铀含量数值。利用实测样品,对裂变径迹法的重复性进行了研究。最后,对水中杂质含量对测量结果的影响进行了分析和讨论。 The fission track method was used to determine the uranium content of the uranium mine site in the range of 10 ~ (-4) -10 ~ (-8) g / 1. The results were in good agreement with the fluorescence and laser fluorescence methods For the samples with low sodium content (≤10 ~ (-8) g / 1), the exact data can not be given by other methods. The fission track method can also give the uranium content for reference. Using the measured samples, the repeatability of fission track method was studied. Finally, the influence of impurities in water on the measurement results is analyzed and discussed.