Getting Purer Berkelium, Faster than Ever

A novel system uses the discovery that the actinide berkelium, when oxidized, does not form negatively charged ions in solutions of high nitric acid, as other actinides do. This means an anion exchange column can separate berkelium by absorbing other actinides with negatively charged ions. The new method is much faster than the previously used approach, and is easier, cleaner, and yields purer product.