Contact Information

Biography

Stephanie received a Bachelor's degree in chemistry from Hood College and a Ph.D. in analytical chemistry from the American University. Stephanie was an NRC post-doctorial fellow at the National Institute of Standards and Technology in Gaithersburg, MD, where she characterized synthetic polymers using MALDI mass spectrometry.

In 2004, Stephanie returned to Pittsburgh to teach in the Department of Chemistry and Biochemistry at Duquesne University. She teaches analytical and forensic chemistry courses and directs student research in these fields. Stephanie also assists with management of the mass spectrometry facilities.

Expertise
  • Analytical and Forensic Chemistry
  • Instrumental Analysis
  • Chromatography and Mass Spectrometry
  • GSR Analysis
  • Polymer Characterization
  • Data Analysis

Education

Ph.D., Analytical Chemistry, American University, 2001
B.A., Chemistry, Hood College, 1996

School

Analytical Chemistry
Advanced Instrumental Analysis
Data Analysis and Statistical Methods
Forensic Chemistry Lab
Advanced Forensic Chemistry Lab
Research Laboratory Techniques

Sun, T., Wetzel, S.J., Johnson, M.E., Surlow, B.A., Patton-Vogt, J. Development and validation of a hydrophilic interaction liquid chromatography-tandem mass spectrometry method for the quantification of lipid-related extracellular metabolites in Saccharomyces cerevisiae (2012) Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences, 897, pp. 1-9.

Wagner, R., Wetzel, S.J., Kern, J., Kingston, H.M.S. Improved sample preparation of glyphosate and methylphosphonic acid by EPA method 6800A and time-of-flight mass spectrometry using novel solid-phase extraction (2012) Journal of Mass Spectrometry, 47 (2), pp. 147-154.

Wetzel SJ, Guttman CM, Flynn KM, Filliban JJ; A statistical Analysis of the Optimization of the MALDI-TOF-MS, J. Am. Soc. Mass Spectrom., 17: 246-252, 2006.

Guttman, CM; Wetzel, SJ; Flynn, KM; Fanconi, MB; VanderHart, DL and Wallace WE; Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry Interlaboratory Comparison of Mixtures of Polystyrene with Different End Groups: Statistical Analysis of Mass Fractions and Mass Moments, Analytical Chemistry, 77: 4539-4548, 2005.

Wetzel SJ, Guttman CM, Flynn KM; The Influence of Electrospray Deposition in MALDI-MS Sample Preparation for Synthetic Polymers, Rapid Communications in Mass Spectrometry, 18: 1139-1146, 2004.

Lin-Gibson S, Bencherif S, Wetzel SJ, Cooper JA, Antonucci JM, Vogel BM, and Washburn NR; Synthesis and Characterization of PEG dimethacrylates and their Hydrogels, Biomacromolecules, 5(4): 1280-1287, 2004.

Wetzel SJ, Guttman CM, Girard JE, Influence of Laser Power and Matrix on the Molecular Mass Distribution of Synthetic Polymers Obtained by MALDI-TOF-MS, International Journal of Mass Spectrometry, 238(3): 215-225, 2004.

Wallace, W. E., Guttman, C. M., Wetzel, S. J, and Hanton, S. D.; Mass Spectrometry of Synthetic-Polymer Mixtures Workshop; Rapid Communications in Mass Spectrometry, 18: 518-521, 2004.

Guttman CM, Wetzel SJ, Blair WR, et al., NIST-Sponsored Interlaboratory Comparison of Polystyrene Molecular Mass Distribution obtained by Matrix-assisted Laser Desorption/ionization Time-of-Flight Mass Spectrometry: Statistical Analysis, Analytical Chemistry, 73:(6) 1252-1262, 2001.

Goldschmidt RJ, Wetzel SJ, Blair WR, et al., Post Source Decay in the Analysis of Polystyrene by Matrix-assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry, J Am Soc Mass Spectrometry 11:(12) 1095-1106, 2000.

Chu PM, Wetzel SJ, Lafferty WJ, et al. Line Intensities for the 8-mu m bands of SO2, Journal of Molecular Spectroscopy 189; (1) 55-63 May 1998.

Chu PM, Roderick GC, Van Vlack D, Wetzel SJ, Lafferty WJ, Guenther FR., A Quantitative Infrared Spectral Database of Hazardous Air Pollutants, Fresenius Journal of Analytical Chemistry 360; (3-4) 426-429 Feb 1998.

Stephanie has been a member of the Spectroscopy Society of Pittsburgh (SSP) since 2005 and has served on the Mass Spectrometry Discussion Group committee, chairing this committee in 2008-2009 and 2011-2012, the Membership Committee, chairing it in 2010-2011, the Continuing Education committee and the Technical Forum committee. Stephanie is currently the SSP secretary. Stephanie has also been a member of the Society of Analytical Chemists of Pittsburgh (SACP) since 2005 and has served on the Student Affiliates committee, the Arrangements Committee and the Continuing Education committee of the SACP. Stephanie has been a member of the American Chemical Society (ACS) for 15 years. Stephanie has been a member of the American Society for Mass Spectrometry (ASMS) for 13 years.

AP - MALDI - TOF - MS Quantitation of Meperidine (Demerol), Kallop, Sara M; Wetzel, Stephanie J; Seventh Annual Mini-Symposium on Metals in Biological Systems, December 2, 2011.

A Comparison of Lead, Barium and Antimony Isotope Concentrations in Gunshot Residue Using ICP-MS and SEM, Holly Bennett, Stephanie J. Wetzel, Department of Chemistry and Biochemistry, American Academy of Forensic Sciences Annual Meeting, February 19-25, 2011.

High Performance Liquid Chromatography-Mass Spectrometry Analysis of Organic Compounds in Soil, George Hupfer, Stephanie J. Wetzel, Dept. of Chemistry and Biochemistry, Duquesne University, American Academy of Forensic Science Annual Meeting, February 19-25, 2011.

GC/MS Comparison of Synthetic Fiber Polymer Additives in Carpets, Antonette Cabauatan, Stephanie J. Wetzel, Dept. of Chem. and Biochem., Bayer School of Natural and Environmental Sciences, American Academy of Forensic Sciences Meeting, February 19-25, 2011.

Detection and Quantification of Dextromethorphan in Human Saliva via Solid Phase Extraction and MS-ESI, Lebair, James; Wetzel, Dr. Stephanie, Duquesne University Undergraduate Research Program, 2011 Summer Research Symposium, July 29, 2011.

Forensic Analysis of Hairs: Identifying Styling Product Residues on Hairs by GC-MS, Weidaw, Chelsea; Wetzel, Stephanie, Department of Chemistry and Biochemistry, Duquesne University, Duquesne University Undergraduate Research Program, 2011 Summer Research Symposium, July 29, 2011.

Analysis of Soil in Allegheny County by PXRD, Toth, Erica; Wetzel, Dr. Stephanie, Forensic Science and Law, Duquesne University, Duquesne University Undergraduate Research Program, 2011 Summer Research Symposium, July 29, 2011.