Thin extractive membrane for monitoring actinides in aqueous streams

- Thin polymer inclusion membrane has been developed for selective actinide sorption.
- Actinide sorption in membrane is dependent on acidity and oxidation states.
- A scheme for selective preconcentration of target actinide has been developed.
- Quantification of actinide in membrane is possible by SSNTD or α-spectrometry.
- This membrane was used for assay of Pu in acidic waste and urine