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前言自李玉成同志提出用小体积容量法测定微量铀以来,很多单位作了不少工作,提供了可贵的经验。该法的优点是速度快,操作简单,成本低。对于承担大量微量铀分析任务的基层实验室,是一个可采用的方法。但我们在实验中也发现该法尚存在一些不足之处。为了使该法更好地应用于微量铀的分析,我们对该法的测定条件进行了试验,使用二苯胺作指示剂,改变了滴定酸度,用三氯化
Preface Since Comrade Li Yucheng proposed the determination of trace uranium by small volumetric capacity method, many units have done a lot of work and provided valuable experience. The advantages of this method are speed, simple operation and low cost. It is a viable method for a lab at a grass-roots level to undertake a large number of uranium analysis tasks. However, we also found in experiments that the law still has some shortcomings. In order to make the method better applied to the analysis of trace uranium, we tested the conditions for the determination of the method, using diphenylamine as an indicator, changing the titration acidity,