Quantification of lanthanides in a molten salt reactor surrogate off-gas stream using laser-induced breakdown spectroscopy
HB Andrews, KG Myhre - Applied Spectroscopy, 2022 - journals.sagepub.com
To enable the deployment of molten salt reactor technology, the development of off-gas
treatment systems and advanced monitoring tools capable of operating with high …
treatment systems and advanced monitoring tools capable of operating with high …
[HTML][HTML] Multivariate chemometric methods and Vis-NIR spectrophotometry for monitoring plutonium-238 anion exchange column effluent in a radiochemical hot cell
LR Sadergaski, KG Myhre, LH Delmau - Talanta Open, 2022 - Elsevier
Abstract The Plutonium-238 Supply Program at Oak Ridge National Laboratory has
developed the capability to inform process decisions during full-scale 238 Pu anion …
developed the capability to inform process decisions during full-scale 238 Pu anion …
Leveraging visible and near-infrared spectroelectrochemistry to calibrate a robust model for Vanadium (IV/V) in varying nitric acid and temperature levels
HB Andrews, LR Sadergaski - Talanta, 2023 - Elsevier
Spectroelectrochemistry and optimal design of experiments can be used to rapidly build
accurate models for species quantification and enable a greater level of process awareness …
accurate models for species quantification and enable a greater level of process awareness …
Simultaneous quantification of uranium (VI), samarium, nitric acid, and temperature with combined ensemble learning, laser fluorescence, and Raman scattering for …
LR Sadergaski, HB Andrews - Analyst, 2022 - pubs.rsc.org
Laser-induced fluorescence spectroscopy (LIFS), Raman spectroscopy, and a stacked
regression ensemble was developed for near real-time quantification of uranium (VI)(1–100 …
regression ensemble was developed for near real-time quantification of uranium (VI)(1–100 …
Pursuit of the ultimate regression model for samarium (III), europium (III), and LiCl using laser-induced fluorescence, design of experiments, and a genetic algorithm for …
Laser-induced fluorescence spectroscopy, Raman scattering, and partial least squares
regression models were optimized for the quantification of samarium (0–150 μg mL–1) …
regression models were optimized for the quantification of samarium (0–150 μg mL–1) …
Comparing Sensor Fusion and Multimodal Chemometric Models for Monitoring U (VI) in Complex Environments Representative of Irradiated Nuclear Fuel
LR Sadergaski, HB Andrews, BA Wilson - Analytical Chemistry, 2024 - ACS Publications
Optical sensors and chemometric models were leveraged for the quantification of uranium
(VI)(0–100 μg mL–1), europium (0–150 μg mL–1), samarium (0–250 μg mL–1) …
(VI)(0–100 μg mL–1), europium (0–150 μg mL–1), samarium (0–250 μg mL–1) …
Applying two-dimensional correlation spectroscopy and principal component analysis to understand how temperature affects the neptunium (V) absorption spectrum
LR Sadergaski, K Morgan - Chemosensors, 2022 - mdpi.com
The visible-near infrared (Vis-NIR) electronic absorption spectrum of neptunium (V)(NpO2+)
comprises numerous ff electronic transitions with mostly undocumented temperature …
comprises numerous ff electronic transitions with mostly undocumented temperature …
Quantifying neptunium oxidation states in nitric acid through spectroelectrochemistry and chemometrics
Controlled-potential in situ thin-layer spectropotentiometry was leveraged to generate
visible/near-infrared (VIS/NIR) absorption spectral data sets for the development of …
visible/near-infrared (VIS/NIR) absorption spectral data sets for the development of …
Design of experiments, chemometrics, and Raman spectroscopy for the quantification of hydroxylammonium, nitrate, and nitric acid
Selecting optimal combinations of preprocessing methods is a major holdup for
chemometric analysis. The analyst decides which method (s) to apply to the data, frequently …
chemometric analysis. The analyst decides which method (s) to apply to the data, frequently …
Partial least squares, experimental design, and near-infrared spectrophotometry for the remote quantification of nitric acid concentration and temperature
Near-infrared spectrophotometry and partial least squares regression (PLSR) were
evaluated to create a pleasantly simple yet effective approach for measuring HNO3 …
evaluated to create a pleasantly simple yet effective approach for measuring HNO3 …