Chemilumines-

cence NO

x

 analyzer

To measure trace amounts of NO and NO 2

UV absorption

ozone analyzer

To measure trace amounts of ozone

Aqueous photo-

oxidation reactor

To expose water-soluble compounds to aqueous hydroxyl radical
© 2021 | Schnitzler Research Group | Department of Chemistry | Oklahoma State University | Stillwater, OK 74078
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Interested in joining our team?

If you would like to learn more about opportunities for graduate and undergraduate students in our group, please email Prof. Schnitzler. 
Graduate and undergraduate students in our group will have opportunities to perform experiments in the laboratory and the field, applying principles and techniques from physical and analytical chemistry to atmospheric and environmental problems.

Students will use state-of-the-art commercial and custom-built instruments, also gaining experience in instrument design,

programming, and electronics.

Atmospheric aerosols, composed of microscopic solid or liquid particles suspended in air, exert significant effects on Earth’s energy balance, both directly by absorbing and scattering sunlight and indirectly by influencing cloud formation. These impacts depend on the composition and structure of the component particles. For example, wildfires may emit aggregates of elemental carbon that are subsequently coated with a wide range of organic compounds. To what extent do these organic compounds partition to the particle phase? Once in the particle phase, how do the organic compounds change the ability of the elemental carbon to absorb sunlight and activate cloud formation? To help answer these and other questions, we investigate the complex chemical, physical, and optical properties of atmospheric aerosol particles with advanced experimental and computational approaches.

Photoelectric

aerosol sensor

To measure particle- bound polycyclic aromatic hydrocarbons

Hygroscopic tandem mobility analyzer

To measure water uptake onto aerosol particles

Multi-phase chemistry flow-tubes

To expose solid and liquid films to gaseous reactants

Gas-phase ozonolysis flow-tube

To expose volatile organic compounds to ozone

Incoherent broad-band cavity-enhanced

aerosol extinction spectrometer

To measure extinction and complex refractive indices of suspended aerosol particles

Scanning mobility

particle sizer

To measure aerosol size distributions

High performance

computing center

To predict structures and spectra of aerosol constituents

LC–time-of-flight mass spectrometer

To separate and quantify components of complex mixtures

Dual-beam fiber-based UV-vis spectrometer

To characterize light-absorbing organic aerosol constituents in solution
Schnitzler Research Group