快堆冷却剂金属钠用量大,且金属钠中杂质镉的中子吸收截面大,故测定和控制金属钠中镉含量(<0.1ppm)是必要的。通过均匀搅拌,处理好辅助电极和参比电极,调整好悬汞电极的敲击力,使阳极溶出伏安法的精度达5%。通过正交试验找到了较好的试验参数和底液组成,即:汞滴大 Because of the large amount of metallic sodium in fast reactor coolant and the large neutron absorption cross section of impurity cadmium in metallic sodium, it is necessary to measure and control the content of cadmium (<0.1ppm) in metallic sodium. Through uniform stirring, the auxiliary electrode and the reference electrode are well treated, and the impact force of the hanging mercury electrode is adjusted so that the accuracy of the anodic stripping voltammetry is up to 5%. Orthogonal test to find a better test parameters and the composition of the end of the liquid, that is: large mercury droplets