Published February 2023 | Version v1
Journal article Metadata-only

A chromatography chemistry for purifying Pa from U-Nb metal alloys

Creators

  • 1. Los Alamos National Lab, Los Alamos, NM (United States)
  • 2. Lawrence Livermore National Lab, Livermore, CA (United States)

Description

We present a chromatography chemistry for purifying protactinium from uranium metal alloys containing weight-percent concentrations of niobium. Niobium is precipitated in 9 M HCl without the co-precipitation of Pa as demonstrated by gamma-ray spectrometry. Protactinium is further purified using Bio-Rad™ anion resin AG® 1-X8 and 9 M HCl + 0.0128 M HF. A Pa/Nb separation factor of 85,000 and a 90% Pa recovery is demonstrated, which is amenable to 231Pa concentration determination by isotope dilution and 231Pa/235U model age calculation for nuclear forensics. (author)

Additional details

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
332
Journal Issue
2
Journal Page Range
p. 369-376
ISSN
0236-5731
CODEN
JRNCDM

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
54028584
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Descriptors DEI
AGE ESTIMATION; COPRECIPITATION; GAMMA SPECTROSCOPY; HYDROGEN CHLORIDES; NIOBIUM; NUCLEAR FORENSICS; PROTACTINIUM 231; RESINS; SEPARATION PROCESSES; URANIUM 235; URANIUM ALLOYS
Descriptors DEC
ACTINIDE ALLOYS; ACTINIDE NUCLEI; ALLOYS; ALPHA DECAY RADIOISOTOPES; CHLORIDES; CHLORINE COMPOUNDS; CRIME DETECTION; DETECTION; ELEMENTS; EVEN-ODD NUCLEI; HALIDES; HALOGEN COMPOUNDS; HEAVY ION DECAY RADIOISOTOPES; HEAVY NUCLEI; HYDROGEN COMPOUNDS; HYDROGEN HALIDES; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; METALS; MINUTES LIVING RADIOISOTOPES; NEON 24 DECAY RADIOISOTOPES; NUCLEI; ODD-EVEN NUCLEI; ORGANIC COMPOUNDS; ORGANIC POLYMERS; PETROCHEMICALS; PETROLEUM PRODUCTS; POLYMERS; PRECIPITATION; PROTACTINIUM ISOTOPES; RADIOISOTOPES; REFRACTORY METALS; SEPARATION PROCESSES; SPECTROSCOPY; SPONTANEOUS FISSION RADIOISOTOPES; TRANSITION ELEMENTS; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
23 refs.