Kinetic analysis of laser induced phosphorescence in uranyl phosphate for improved analytical measurements

Conference · Sat Oct 01 00:00:00 EDT 1983

OSTI ID:5306367

Bushaw, B A

Pulsed dye-laser excitation with multichannel scaler photon counting is used to obtain time resolved emission spectra of uranyl ions in aqueous solution. Kinetic analysis of this data corrects for matrix quenching and temperature effects which reduce the quantum yield of the uranyl ion luminescence. The method gives accurate measurements without separative prechemistry or the use of internal standards. Detection limits of one part-per-trillion (pptr) have been demonstrated, and in samples with concentrations greater than 100 pptr, relative standard deviations of less than 3% are achieved routinely.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5306367
• Report Number(s): PNL-SA-11455; CONF-831025-30; ON: DE84008287
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
ACTINIDE COMPOUNDS
ACTINIDES
ELECTROMAGNETIC RADIATION
ELEMENTS
EMISSION SPECTRA
EMISSION SPECTROSCOPY
LASER RADIATION
LUMINESCENCE
METALS
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORESCENCE
PHOSPHORUS COMPOUNDS
RADIATIONS
SPECTRA
SPECTROSCOPY
URANIUM
URANIUM COMPOUNDS
URANYL COMPOUNDS
URANYL PHOSPHATES