Featured Scholar: John Goodpaster, PhD
Associate Professor, Purdue School of Science
Associate Director, Forensic and Investigative Sciences (FIS) Program
Research Video: https://www.youtube.com/watch?v=TqkgP3E-vao
Evaluation of the Odor Compounds Sensed by Explosive-Detecting Canines
The remote detection of explosives generally relies upon detecting volatile compounds that are emitted by the explosive itself. Detection of these compounds can be achieved through instrumentation or by specially trained canines. While instruments are designed and built to respond to particular chemical species, it is not always clear what chemical species generates a canine alert. In addition, canines have the ability to "generalize" and correctly alert to explosive formulations that are similar, but not identical, to those with which they have trained. This would tend to indicate that there are common chemical odors for some types of explosives. Dr. Goodpaster's research examines the effect of odor availability and differing odor compounds on canine detection. As the chemical composition of the headspace above explosive formulations is more completely understood, it should be possible to test the extent to which canine alerts correlate to the compounds of interest.
Selected Publications in IUPUI ScholarWorks
With several research works contributed to IUPUI's free, open access repository, Dr. Goodpaster has made translational research knowledge available to professionals, researchers, students, and communities around the world.
Kranz, W. D., Carroll, C. J., & Goodpaster, J. V. (2016). Detection of prohibited treatment products on racing tires using headspace solid phase microextraction (SPME) and gas chromatography/mass spectrometry (GC/MS). Anal. Methods, 8(1), 177–182. http://hdl.handle.net/1805/10547
Bors, D., & Goodpaster, J. (2015). Mapping explosive residues on galvanized pipe bomb fragments using total vaporization solid phase microextraction (TV-SPME). Analytical Methods, 7(23), 9756–9762. http://hdl.handle.net/1805/9880
Turner, D. A., Pichtel, J., Rodenas, Y., McKillip, J., & Goodpaster, J. V. (2015). Microbial degradation of gasoline in soil: Effect of season of sampling. Forensic science international, 251, 69-76. http://hdl.handle.net/1805/7211
Carrison, M., Goodpaster, J., Smith, G.D. (2014, April 11). Solvent Azeotropes in Art Conservation. Poster session presented at IUPUI Research Day 2014, Indianapolis, Indiana. http://hdl.handle.net/1805/5171
Rainey, C. L., Shifflett, J. R., Goodpaster, J. V., Bezabeh, D. Z., & St, L. D. (2013). Quantitative Analysis of Humectants in Tobacco Products Using Gas Chromatography (GC) with Simultaneous Mass Spectrometry (MSD) and Flame Ionization Detection (FID). Beiträge zur Tabakforschung International/Contributions to Tobacco Research, 25(6), 576-585. http://hdl.handle.net/1805/5033
Liszewski, E. A., Lewis, S. W., Siegel, J. A., & Goodpaster, J. V. (2010). Characterization of automotive paint clear coats by ultraviolet absorption microspectrophotometry with subsequent chemometric analysis. Applied spectroscopy, 64(10), 1122-1125. http://hdl.handle.net/1805/5032
John Goodpaster, Purdue School of Science, Erica Lotspeich, Chemistry Student, Neoshia Roemer, Chemistry Student and Josh Cummins, Chemistry Student. (2010, April 9). Odor Compounds Detected by Explosive-Detecting Canines. Poster session presented at IUPUI Research Day 2010, Indianapolis, Indiana. http://hdl.handle.net/1805/11325
Goodpaster, J. V., & Mcguffin, V. L. (1999). Rapid and accurate determination of Stern-Volmer quenching constants. Applied spectroscopy, 53(8), 1000-1008. http://hdl.handle.net/1805/5031