Automated Calibration for Rapid Optical Spectroscopy Sensor Development for Online Monitoring

HB Andrews, LR Sadergaski - ACS sensors, 2024 - ACS Publications
An automated platform has been developed to assist researchers in the rapid development
of optical spectroscopy sensors to quantify species from spectral data. This platform …

Rapid screening of wood and leaf tissues: investigating silicon-based phytoliths in Populus trichocarpa for carbon storage applications using laser-induced …

HB Andrews, AM Wymore, EE Wetter… - Journal of Analytical …, 2023 - pubs.rsc.org
Phytoliths, which are noncrystalline particles of amorphous silica that form inside plant cells,
contribute to the global carbon cycle through their ability to occlude organic carbon. The …

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) …

Quantifying neptunium oxidation states in nitric acid through spectroelectrochemistry and chemometrics

LR Sadergaski, HB Andrews, SE Gilson… - Frontiers in Nuclear …, 2023 - frontiersin.org
Controlled-potential in situ thin-layer spectropotentiometry was leveraged to generate
visible/near-infrared (VIS/NIR) absorption spectral data sets for the development of …

Partial least squares, experimental design, and near-infrared spectrophotometry for the remote quantification of nitric acid concentration and temperature

LR Sadergaski, SB Irvine, HB Andrews - Molecules, 2023 - mdpi.com
Near-infrared spectrophotometry and partial least squares regression (PLSR) were
evaluated to create a pleasantly simple yet effective approach for measuring HNO3 …

[HTML][HTML] Combinatorial Order Pre-processing Search (COPS): A new pre-processing strategy for large-scale interpretable data analysis in process analytical …

W Cardoso, JV Roque, JJ Jansen, SY Teng… - Computers & Chemical …, 2025 - Elsevier
Abstract Combinatorial Order Pre-processing Search (COPS), a novel approach for
optimizing data pre-processing is proposed in this work. Unlike simultaneous …

Remote Sensing of Nitric Acid and Temperature via Design of Experiments, Chemometrics, and Raman Spectroscopy

DV Russell, LR Sadergaski, JD Einkauf, LH Delmau… - ACS …, 2024 - ACS Publications
This study presents an effective method for the quantification of nitric acid (0.1–9 M) and the
temperature (20–60° C) through optimal experimental design, chemometrics, and Raman …

Hierarchical Modeling to Enhance Spectrophotometry Measurements—Overcoming Dynamic Range Limitations for Remote Monitoring of Neptunium

HB Andrews, LR Sadergaski - Chemosensors, 2023 - mdpi.com
A robust hierarchical model has been demonstrated for monitoring a wide range of
neptunium concentrations (0.75–890 mM) and varying temperatures (10–80° C) using …

Leveraging Calibration Transfer Techniques for Remote Monitoring of Samarium and Europium in LiCl Using Laser-Induced Florescence Spectroscopy for …

HB Andrews, J Moon… - Industrial & Engineering …, 2024 - ACS Publications
Radioisotope production relies on complex chemical processes that must be performed in
radiological hot cells or glove boxes because of the radioactive and otherwise hazardous …

Comparing Designed Training Sets to Optimize Multivariate Regression Models for Pr, Nd, and Nitric Acid Using Spectrophotometry

LR Sadergaski, HB Andrews, D Rai… - Applied …, 2024 - journals.sagepub.com
Chemometric regression models were developed for the quantification of praseodymium (Pr,
0–1000 µg/mL), neodymium (Nd, 0–1000 µg/mL), and nitric acid (HNO3, 0.1–5 M) using …