Highly selective separation of plutonium using a mono-amide-based supported liquid membrane

Rapid and precise determination of the 238Pu/239Pu isotope ratio using thermal ionization mass spectrometry

“…With the addition of NH 2 OH·HCl, Pu( iv ) gets reduced to Pu( iii ) which has much lower binding capacity with DOHA as compared to Pu( iv ) and is hence eluted out of the membrane. 31 Then Pu in (1 M NH 2 OH·HCl+ 3 M HCl) solution was further treated with conc. HNO 3 and finally re-dissolved in few micro litres of 1 M HNO 3 and loaded on the Re filament for TIMS analysis.…”

“…The synthesis and characterization of the DOHA-RTIL@PP membrane have been reported elsewhere. 31 Briefly, 0.1 M solution of the extractant DOHA was prepared in the RTIL [C 6 mim][NTf 2 ]. These solutions were equilibrated with microporous PP membranes overnight.…”