caa a22 4500 469112298 CHVBK 20180323133114.0 cr unu---uuuuu 170328e19920801xx s 000 0 eng 10.1007/BF02040499 doi (NATIONALLICENCE)springer-10.1007/BF02040499 High-temperature spectroscopy for nuclear waste applications [Elektronische Daten] [P. Grant, P. Robouch, R. Torres, R. Silva] Instrumentation has been developed to perform uv-vis-nir absorbance measurements remotely and at elevated temperatures and pressures. Fiber-optic spectroscopy permits the interrogation of radioactive species within a glovebox enclosure at temperatures ranging from ambient to >100 °C. Spectral shifts as a function of metal-ligand coordination are used to compute thermodynamic free energies of reaction by matrix regression analysis. Pr3+ serves as a convenient analog for trivalent actinides without attendant radioactivity hazards, and recent results obtained from 20-95 °C with the Pr-acetate complexation system are presented. Preliminary experimentation on Am(III) hydrolysis is also described. Akadémiai Kiadó, 1992 Grant P. Nuclear Chemistry Division L-234, Lawrence Livermore National Laboratory, 94550, Livermore, CA, (USA) aut Robouch P. Nuclear Chemistry Division L-234, Lawrence Livermore National Laboratory, 94550, Livermore, CA, (USA) aut Torres R. Nuclear Chemistry Division L-234, Lawrence Livermore National Laboratory, 94550, Livermore, CA, (USA) aut Silva R. Nuclear Chemistry Division L-234, Lawrence Livermore National Laboratory, 94550, Livermore, CA, (USA) aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 161/2(1992-08-01), 527-532 0236-5731 161:2<527 1992 161 10967 https://doi.org/10.1007/BF02040499 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02040499 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Grant P. Nuclear Chemistry Division L-234, Lawrence Livermore National Laboratory, 94550, Livermore, CA, (USA) aut NATIONALLICENCE 700 1- Robouch P. Nuclear Chemistry Division L-234, Lawrence Livermore National Laboratory, 94550, Livermore, CA, (USA) aut NATIONALLICENCE 700 1- Torres R. Nuclear Chemistry Division L-234, Lawrence Livermore National Laboratory, 94550, Livermore, CA, (USA) aut NATIONALLICENCE 700 1- Silva R. Nuclear Chemistry Division L-234, Lawrence Livermore National Laboratory, 94550, Livermore, CA, (USA) aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 161/2(1992-08-01), 527-532 0236-5731 161:2<527 1992 161 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer