Method for measuring content of metal impurities in nuclear-grade ion exchange resin

The invention discloses a method for measuring the content of metal impurities in nuclear-grade ion exchange resin, which comprises the following steps: immersing a resin sample in water, centrifugally dewatering, and measuring the water content of the resin sample; placing the dehydrated resin sample in a digestion tank; adding strong acid into the resin sample; pressurizing the digestion tank; carrying out digestion treatment by adopting a multi-temperature-zone segmental digestion method; after digestion is completed, the digestion solution is diluted, the content of metal impurities in the digestion diluent is measured, and the content of metal impurity components in the resin sample is obtained through calculation. According to the method for measuring the content of the metal impurities in the nuclear-grade ion exchange resin, pre-pressurization and higher digestion temperature and digestion pressure are set, so that rapid and thorough digestion of different nuclear-grade resin is guaranteed, the conten