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本文叙述利用电解沉积法制备定量的U~(235)和U~(238)的涂片。简单介绍了电解沉积法的仪器和定量分析方法。对影响电解沉积效率的困素进行了试验,获得最佳实验条件。制得铀量为0.899毫克的U~(238)涂片,其精确度为±0.8%;制得铀量为1.11毫克和1.17毫克的U~(235)涂片,其精确度为2.1%。
This article describes the use of electrolytic deposition method to prepare quantitative U ~ (235) and U ~ (238) smears. A brief introduction of the instrument for electrolytic deposition and quantitative analysis methods. Experiments on the factors that affect the efficiency of the electrolytic deposition were carried out to obtain the best experimental conditions. The U ~ (238) smear with 0.899 mg of uranium was prepared with a precision of ± 0.8%. U ~ (235) smears with 1.11 mg and 1.17 mg of uranium were obtained with an accuracy of 2.1%.