用极谱法连续测定Mo和W的报道较少,用方波伏安法连续测定U_3O_8中Mo和W至今尚未见到报道,U_3O_8试样中Mo和W含量的比例有时高达100多倍,W的含量又很低,因此用一般的极谱法连续测定有困难。本文研究了硫酸-氯酸钾-苦杏仁酸-二苯胍体系中Mo和w的方波悬汞催化伏安连续测定方法。主体元素铀采用TBP萃淋树脂分离除去,在选定的条件 The continuous determination of Mo and W by polarography has been reported for a long time. Continuous determination of Mo and W in U_3O_8 by square wave voltammetry has not been reported so far. The proportion of Mo and W in U_3O_8 is sometimes as high as 100 times, The content is very low, so it is difficult to measure continuously by the general polarography. In this paper, the continuous determination of square root suspensions of Mo and W in sulfuric acid-potassium chlorate-mandelic-diphenylguanidine system was studied. The main element of uranium was removed by TBP extraction resin in the selected conditions