Abstract
The present work describes preparation of 239Np tracer from 243Am stock solution and the purification of this solution from ferric cation. The method of the preparation of tracer involves stabilization of Np(IV) by ascorbic acid and ferric nitrate, separation of 239Np from 243Am by extraction chromatography and determination of recoveries of 239Np by means of gamma spectroscopy. We used the commercially available sorbents TEVA®Resin for the 239Np preparation and DGA Resin for 243Am purification. All sorbents were purchased from Eichrom Industries, Inc. The first eluate from the column can be stored for a future preparation of the tracer and fraction with 239Np will be used to monitor radiochemical yield of 237Np.
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