Sequential radiochemical analytical procedure for Pu, Am, U and Np isotopes in soil and radioactive waste samples

Recently, several studies have been reported on the combined procedure for the determination of the radionuclides in environmental samples with extraction chromatographic materials such as TRU Spec, TEVA Spec resins and Diphonix. However, the combined methods for the nuclides in soil or sediment samples are limited because it is somewhat difficult to purify the radionuclides due to major salts ions in the soil. Also, these combined methods were focused on only the actinides such as Pu and Am isotopes, not including the Np and U isotopes. In this study, an extraction chromatography method using such as anion exchange resin and TRU Spec resin was developed for rapidly and reliably determining the low levels of Pu, Np, Am and U isotopes in environmental samples and radioactive waste samples. The developed analytical method for Pu, Np, Am and U isotopes was validated by an application to IAEA-Reference samples