Determination of CMPO using HPLC -UV

Journal Article · Fri Jun 01 00:00:00 EDT 2012 · Journal of Chromatography A

DOI:https://doi.org/10.1016/j.chroma.2012.04.047· OSTI ID:1042342

Elias, Gracy; Groenewold, Gary S; Mincher, Bruce J; Mezyk, Stephen P

Octyl(phenyl)-N,N-diisobutylcarbamoylmethylphosphine oxide (CMPO) is an extractant proposed for selective separation of radionuclide metals from used nuclear fuel solutions using solvent extraction. Radiolysis reactions can degrade CMPO and reduce separation performance and hence methods for measuring concentration of CMPO and identifying degradation products are needed. A novel high performance liquid chromatography (HPLC) method employing ultraviolet detection (UV) was developed to detect and quantitate CMPO in dodecane. Some radiolysis products in gamma and alpha irradiated CMPO solutions were identified using HPLC/electrospray ionization-mass spectrometry (ESI-MS). Validation data indicated that the HPLC-UV method for CMPO determination provided good linearity, sensitivity, procedure accuracy and system precision. CMPO-nitric acid complexes were also identified, that account for the apparent loss of CMPO in acidic environment, independent of irradiation.

• Research Organization: Idaho National Lab. (INL), Idaho Falls, ID (United States)
• Sponsoring Organization: DOE - NE
• DOE Contract Number: DE-AC07-05ID14517
• OSTI ID: 1042342
• Report Number(s): INL/JOU-11-23513; TRN: US1202769
• Journal Information: Journal of Chromatography A, Vol. 1243; ISSN 0021-9673
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ACCURACY
CMPO
DETECTION
DODECANE
HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY
IRRADIATION
METALS
NUCLEAR FUELS
OXIDES
PERFORMANCE
RADIOISOTOPES
RADIOLYSIS
SENSITIVITY
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
SPECTROSCOPY
VALIDATION
HPLC
radiolysis
TOF-MS
UHPLC