Abstract

A simultaneous determination method of U and HNO3 concentrations by fluorescence spectroscopy was proposed. In the method, the former was determined from UO2 2+ fluorescence intensity which is proportional to UO2 2+ ion concentration and the latter from UO2 2+ fluorescence spectrum profile which depends on the NO3 − ion configuration around the UO2 2+ ion. The UO2 2+ fluorescence spectra were measured by a laser-induced fluorescence spectrometer which was capable of remote measurement by utilizing fiber optics. The fluorescence spectrum profiles were evaluated by normalized integrated fluorescence intensities in the wavelength region of 510∼650 nm. The U and HNO3 concentrations were determined in the ranges of 1∼200 mg/dm3 with an accuracy of 0.5 mg/dm3, and 0.75∼6.0 mol/dm3 with an accuracy of 0.1 mol/dm3, respectively.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.