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Dr. Scott Hewitt

Professor Analytical Chemistry

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Atmospheric chemistry, combustion chemistry, and archaeology, with a focus on the oxidation of hydrocarbons using gas chromatography, infrared spectroscopy, and mass spectrometry.



Office: MH-582D
Phone: (657) 278-3689
Lab: DBH-146/147
Phone: (657) 278-5985
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Courses Taught

  • CHEM 100 Survey of Chemistry
  • CHEM 120B General Chemistry
  • CHEM 313ABC Environmental Pollution and Solutions
  • CHEM 315 Theory of Quantitative Analysis
  • CHEM 390 Careers in Chemistry & Biochemistry
  • CHEM 411G Mass Spectrometry
  • CHEM 436 Atmospheric Chemistry
  • CHEM 480T Green Chemistry
  • CHEM/ENST 492 Sustainability Products
  • CHEM 512 Advanced Instrumentation
  • CHEM 552 Kinetics & Spectroscopy


Postdoctoral Cornell University, Ithaca, NY
Ph.D. Columbia University, New York, NY
M.Sc. Columbia University, New York, NY
B.Sc. University of Wisconsin-Madison, Madison, WI

Research Interests

Dr. Hewitt's research interests focus on 1)lab studies of the kinetics and reaction mechanisms of atmospheric species using Fourier transform infrared spectroscopy, gas chromatography, and gas chromatography/mass spectrometry; and 2) lab studies of tar:  methods of collection and purification, determining the source of archaeological samples (mainly Olmec), the oxidation of tar, and air sampling of tar. 

Selected Publications

G.D. Boone, F.Agyin, D.J. Robichaud, F-M. Tao, and A.S. Hewitt, "Rate Constants for the Reactions of Chlorine Atoms with Deuterated Methanes: Experiment and Theory," J. Phys. Chem. A., 105, 1456 (2001)

A.S. Hewitt, B.H. Weber, J. Olmsted, III, and A. Flores, "Ethics in Undergraduate Research: Getting Students Involved," Council on Undergraduate Research Quarterly 18, 117 (1998).

A.D. Hewitt, K.M. Brahan, G.D. Boone, and A.S. Hewitt, "Kinetics and Mechanism of the Cl + CO Reaction in Air," Int. J. Chem. Kinet. 28, 763 (1996)

K.M. Brahan, A.D. Hewitt, G.D. Boone, and A.S. Hewitt, "Rate Constant for the Reaction of Cl with CHCl3," Int. J. Chem. Kinet. 28, 397 (1996).

A.S. Hewitt, "Educating the Next Generation of Environmental Chemists," Environ. Sci. Technol. 29, 130A (1995).

V.P. Hradil, T. Suzuki, A.S. Hewitt, P.L. Houston, and B.J. Whitaker, "An Investigation of the 355-nm Photodissociation of NO2 by State-Resolved Photofragment Imaging," J. Chem. Phys. 99, 4455 (1993).

A.S. Hewitt, L. Zhu, and G.W. Flynn, "Diode Laser Probing of CO2 Vibrational Excitation Produced by Collisions with High Energy Electrons from 193 nm Excimer Laser Photolysis of Iodine," J. Chem. Phys. 97, 6396 (1992).

T. Suzuki, V.P. Hradil, A.S. Hewitt, P.L. Houston, and B.J. Whitaker, "Two- Dimensional Imaging of State-Selected Photofragments: The 355 nm Photolysis of NO2," Chem. Phys. Lett. 187, 257 (1991).

A.S. Hewitt, J.F. Hershberger, J.Z. Chou, G.W. Flynn, and R.E. Weston, Jr., "Rotationally and Translationally Resolved Hot Atom Collisional Excitation of the CO2 Fermi Mixed Bend/Stretch Vibrational Levels by Time-Dependent Diode Laser Spectroscopy," J. Chem. Phys. 93, 4922 (1990).