People
Elijah G. Schnitzler
Assistant Professor
Principal investigator
NSERC Postdoctoral Fellow, University of Toronto
PhD, University of Alberta
BSc, Concordia University College of Alberta
Elijah obtained his PhD in physical chemistry from the University of Alberta in 2016,
investigating intermolecular interactions in atmospheric aggregates ranging from
bimolecular complexes of oxygenated organic compounds and water to nano-
particles of internally mixed black carbon and secondary organic aerosol, under
the supervision of Prof. Wolfgang Jäger. From 2017 to 2019, he was an NSERC post-
doctoral fellow in the group of Prof. Jonathan Abbatt at the University of Toronto,
where he studied the optical evolution of primary and secondary light-absorbing
organic aerosol upon heterogeneous oxidation by ozone and hydroxyl radical and
its dependence on relative humidity, temperature, and volatility. In 2019, Elijah
joined the Department of Chemistry at Oklahoma State University. His group
investigates the chemical, physical, and optical properties of atmospheric aerosol
particles, including those emitted from regional biomass burning, which impact
climate and human health.
Students
Habeeb Al-Mashala
Fifth-Year Graduate Student
Habeeb obtained his BSc in Chemistry from Southeast Missouri State University in May
2019. There he studied crystallography under Prof. Marcus Bond, investigating the
structure of trimethyl pyridine counter ions. He joined the Schnitzler group as a
graduate student in January 2020. His current research interests revolve around
measuring the composition of carbonaceous aerosol and its evolution due to hetero-
geneous oxidation with ozone, using high-resolution time-of-flight mass spectrometry
coupled to ultra-high-performance liquid chromatography.
Katrina Betz
Fifth-Year Graduate Student
Katrina received her BSc in Chemistry from Northwestern Oklahoma State University
in spring of 2019. Her undergraduate research with Prof. Jason Wickham focused on
fluctuations of iodine in brine water from northern Oklahoma, partnering with oil
companies to obtain samples. She joined the Schnitzler group in January 2020, where
she will focus on water uptake to carbonaceous aerosol particles, including laboratory-
generated surrogates and field-collected samples, using hygroscopic tandem mobility
analysis.
Colton Calvert
Fifth-Year Graduate Student
Colton received his BSc in Biology and Chemistry from Southern Nazarene University
in May 2019. He first gained interest in research while studying populations of
resplendent quetzal in the Talamanca Mountains of Costa Rica. He later joined the
Tahsini group at Oklahoma State University through an REU and worked to synthesize
pincer pyridine-based N-heterocyclic carbene ligands with fluorinated substituents
before gaining an internship at Johns Hopkins University, where he worked to develop
a method for quantifying bulk mechanical defects in proteins of cardiomyocytes with
arrhythmogenic right ventricular cardiomyopathy. He joined the Schnitzler group in
January 2020, where his current research interests include utilizing computational
methods and spectroscopy to determine the optical properties of organic aerosols.
Alumni
Alison Boone | Undergraduate Research Assistant, Biochemistry, Spring 2021
Addie Coody | Undergraduate Research Assistant, Biochemistry, Fall 2021
Elevia Bruce | CHEM 4990 Undergraduate Research Assistant, Biochemistry, Fall 2021
Troye Jirka | Freshman Research Scholar, Fall 2021
Nathan Huskins | Undergraduate Research Assistant, Chemical Engineering, Fall 2021
Christian Escritt | McNair Undergraduate Research Scholar, Summer 2022
Sithumi Liyanage
Third-Year Graduate Student
Sithumi received her BSc in Environmental Science from the University of
Peradeniya, Sri Lanka, in spring of 2020. Her undergraduate research was focused
on the chemical composition of regional rainwater in Sri Lanka and its effects on air
pollution under the supervision of Prof. H. M. D. N. Priyantha. She joined the
Schnitzler group in January 2022, where she will focus on multi-phase chemistry,
including oxidation.
Sarah Dye | CHEM 4990 Undergraduate Research Assistant, Biochemistry, Fall 2023