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Graduate Student Achievement

The graduate degrees in our Master of Science and Doctorate program are focused on research for the professional and academic development of our students. Below are several achievements which exhibit the success of our students within the forensic science community.


Graduate Student Publications

The following publications were written by graduate students to disseminate the findings of their research projects:

1. Travon Cooman, Colby Ott, Kourtney Dalzell, Amber Burns, Edward Sisco, Luis E. Arroyo. Screening of Seized Drugs Utilizing Potable Raman Spectroscopy and Direct Analysis in Real Time-Mass Spectrometry (DART-MS). Forensic Chemistry. 2021 https://doi.org/10.1016/j.forc.2021.100352

2. Joseph Cox, Kylea Mathison, Colby Ott, Joseph DelTondo, James Kraner, Anthony P. DeCaprio, Luis E Arroyo-Mora "Quantitation and Validation of 34 Fentanyl Analogs from Liver Tissue Using a QuEChERS Extraction and LC-MS/MS Analysis" Journal of Analytical Toxicology, 2021. https://doi.org/10.1093/jat/bkab009

3. W Feeney, K Menking-Hoggatt, C Vander Pyl, C Ott, S Bell, L Arroyo, T Trejos. Detection of organic and inorganic gunshot residues from hands using complexing agents and LC-MS/MS. Analytical Methods. 2021, 13, 3024-3039, https://doi.org/10.1039/D1AY00778E (Journal COVER PAGE and hot article)

4. C Vander Pyl, C Martinez-Lopez, K Menking-Hoggatt, T Trejos. Analysis of primer gunshot residue particles by Laser Induced Breakdown Spectroscopy and Laser Ablation Inductively Coupled Plasma Mass Spectrometry. Analyst. 2021. https://doi.org/10.1039/D1AN00689D

5. K Menking-Hoggatt, C Martinez, C Vander Pyl, E Heller, E Pollock, L Arroyo, and T. Trejos. Development of Tailor-Made Inorganic Gunshot Residue (IGSR) Microparticle Standards and Characterization with a Multi-technique Approach. Talanta. April 2021, 225, https://doi.org/10.1016/j.talanta.2020.121984

7. K Menking-Hoggatt, L Arroyo, J Curran and T Trejos. Novel LIBS method for chemical micro-mapping of inorganic gunshot residue collected from hand samples, Journal of Chemometrics, online Dec 2019, 2021;35: e3208, https://doi.org/10.1002/cem.3208

8. E Brooks, A Mehltretter, M Prusinowski, T Trejos. Optimization and Evaluation of Spectral Comparisons of Electrical Tape Backings by X-ray Fluorescence. Journal of Forensic Chemistry, 21, 2020.https://doi.org/10.1016/j.forc.2020.100291

9.  C Ott, K Dalzell, PJ Calderon, AL Alvarado-Gomez, T Trejos, L Arroyo. Evaluation of the Simultaneous Analysis of Organic and Organic Gunshot Residues within a Large Population Data Set Using Electrochemical Sensors, Journal of Forensic Sciences, 2020, https://doi.org/10.1111/1556-4029.14548

10.  E Brooks, M Prusinowski, S Gross, T Trejos. Forensic Physical Fits in the Trace Evidence Discipline: A Review, Forensic Science International, 313, 2020, https://doi.org/10.1016/j.forsciint.2020.110349

11. C Vander Pyl, K Morris, L Arroyo, T Trejos. Assessing the utility of LIBS in the reconstruction of firearm related incidents, Journal of Forensic Chemistry, 19, June 2020, https://doi.org/10.1016/j.forc.2020.100251

12. W Feeney, C Vander Pyl, S Bell, T. Trejos. Trends in Composition, Collection, Persistence, and Analysis of IGSR and OGSR: A Review. Journal of Forensic Chemistry, 19, June 2020, https://doi.org/10.1016/j.forc.2020.100250

13. E Haase, L Arroyo, T Trejos. Classification of printing inks in pharmaceutical packages by Laser-Induced Breakdown Spectroscopy and Attenuated Total Reflectance-Fourier Transform Infrared Spectroscopy, Spectrochimica Acta B, 172, 2020. https://doi.org/10.1016/j.sab.2020.105963

14. M Prusinowski, E Brooks, T Trejos. Development and validation of a systematic approach for the quantitative assessment of the quality of duct tape physical fits. Forensic Science International, 307, February 2020, https://doi.org/10.1016/j.forsciint.2019.110103

Graduate Student Presentations

Our graduate students also gave several presentations at national and regional conferences to share their research topics and findings during 2020-2021:

  1. Society of Forensic Toxicologist (SOFT) Annual Meeting. Effects of Fentanyl on Blow Fly Development and Quantitation of Fentanyl from Insect Tissue via QuECHERs Extraction and LC-MS/MS Analysis. Joseph Cox, Katherine Davis, Kylea Mathison, Rachel Mohr, Joseph Del Tondo, Luis E. Arroyo. Nashville TN. September 26-Oct. 1st, 2021.
  2. Society of Forensic Toxicologist (SOFT) Annual Meeting. QueCHERs Extraction and LC-MS/MS Quantitation of Fentanyl Analogs and Metabolites from Liver Tissue to Support Medicolegal Death Investigations. Joseph Cox, Katherine Davis, Kylea Mathison, Joseph Del Tondo, James Kraner, Luis E. Arroyo. Nashville TN. September 26-Oct. 1st, 2021.
  3. September 23, 2021, Korina Menking-Hoggatt, Edward “Chip” Pollock, Emily Heller, Courtney Vander Pyl, Claudia Martinez, Tatiana Trejos. Inorganic Gunshot Residue (IGSR) Micro-particle Standard with Application to Method Development and Understanding Modern Ammunition. Mid-Atlantic Association of Forensic Scientist and ASTEE joint meeting (oral, MAAFS Annual Scholarship Winner)
  4. September 23, 2021, Lauryn Alexander, Oriana Ovide, Olivia Duffett. How common is it to find glass and paint residues in a member of the general U.S. population? A preliminary study. Mid-Atlantic Association of Forensic Scientist and ASTEE joint meeting (oral)
  5. September 23, 2021. Courtney Vander Pyl, Korina Menking-Hoggatt, Tatiana Trejos. Rapid Analytical Screening Methods for the Investigation of Firearm Related Crimes. Mid-Atlantic Association of Forensic Scientist and ASTEE joint meeting (oral)
  6. G. P. Jackson, A. Adeoye, J. T. Davidson, E. Ruiz, B. Lowe, “A New Mass Spectral Identification Algorithm to Discriminate Between Structurally Similar Fentanyl Analogs,” at SciX Conference, Providence, RI, Sept 2021. (Oral)
  7. July 29th, 2021. Colton Diges, Zachary Andrews, Meghan Prusinowski. Microfiber Alignment in Stamp Edges for Physical Fit. 13th Annual summer undergraduate research symposium, Morgantown, WV https://www.youtube.com/watch?v=tdt-TiiNtXM
  8. July 29th, 2021. Olivia Duffet, Lauryn Alexander, Oriana Ovide, Tatiana Trejos. Survey of Glass and Paint in the General Population to Assess their Evidential Value. 13th Annual summer undergraduate research symposium, Morgantown, WV https://www.youtube.com/watch?v=0aDxkbAueco
  9. July 29th, 2021. Declan Revenew, Courtney Vander Pyl, Bill Feeney, Tatiana Trejos. Evaluating GC-MS and LC-MS/MS Efficacy for Characterization of a Developed Organic Gunshot Residue Standard. 13th Annual summer undergraduate research symposium, Morgantown, WV https://www.youtube.com/watch?v=1yszuB1nH60
  10. 13th Annual Summer Undergraduate Research Symposium “Identification of Hydroxyzine hydrochloride Utilizing Electrochemistry and Time-Resolved Raman Spectroelectrochemistry on Screen-Printed Electrodes”. Kendra Kelly, Alexis Wilcox, Colby Ott, Luis E. Arroyo. Morgantown, July 29, 2021 (online poster).
  11. July 28th, 2021. Jessica Friedel, Korina Menking-Hoggatt, and Tatiana Trejos. Prevalence of Particles Characteristic and Consistent with GSR Found in A Background Population Study. Current Trends in Forensic Trace Analysis 2021 Online Forensic Symposium. (poster)
  12. July 28th, 2021. Courtney Vander Pyl, Claudia Martinez-Lopez, Korina Menking-Hoggatt, Tatiana Trejos. Rapid Laser-Based Methods for the Detection of Modern Gunshot Residues. Current Trends in Forensic Trace Analysis 2021 Online Forensic Symposium. (Poster, BEST POSTER ELSERVIER FORENSIC CHEMISTRY AWARD)
  13. July 28th, 2021. William Feeney, Suzanne Bell, Tatiana Trejos. Exploring the probabilistic interpretation of gunshot residue in various populations using LC-MS/MS. Current Trends in Forensic Trace Analysis 2021 Online Forensic Symposium. (poster)
  14. July 28th, 2021. Lauryn Alexander, Oriana Ovide, Olivia Duffet, Tatiana Trejos. A Study of Frequency of Occurrence of Glass and Paint in the U.S. Population: Preliminary Findings. Current Trends in Forensic Trace Analysis 2021 Online Forensic Symposium. (poster)
  15. July 28th, 2021. Oriana Ovide, Ruthmara Corzo, Tatiana Trejos. Assessing the Variability Within Small Vehicular Glass Fragments Using µ-XRF. Current Trends in Forensic Trace Analysis 2021 Online Forensic Symposium. (poster)
  16. July 28th, 2021. Zachary Andrews, Colton Diges, Meghan Prusinowski, Tatiana Trejos. Assessing the Value of Microfiber Alignment Between Stamp Edges for Physical Fit Comparisons. Current Trends in Forensic Trace Analysis 2021 Online Forensic Symposium. (poster)
  17. Current Trends in Electrochemistry, 41st Meeting of the Electrochemistry Group of the Spanish Royal Society of Chemistry. 1st French-Spanish Atelier/Workshop on Electrochemistry (online meeting) “Spectroelectrochemical screening of drugs of abuse for time-resolved electrochemical and SERS detection in forensic investigations” Paris, France. Colby E. Ott, Jerson González-Hernández, Sara L. Kuberski, Kourtney A. Dalzell, Travon Cooman, Ana L. Alvarado-Gámez, Roberto Urcuyo, M. Julia Arcos-Martínez, Aranzazu Heras, Alvaro Colina, and Luís E. Arroyo-Mora. (July 6 - July 9, 2021)
  18. Current Trends in Electrochemistry, 41st Meeting of the Electrochemistry Group of the Spanish Royal Society of Chemistry. 1st French-Spanish Atelier/Workshop on Electrochemistry (online meeting) “Electrochemical detection of fentanyl using screen-printed carbon electrodes for seized drugs of abuse and forensic applications” Paris, France. Colby E. Ott, Hugo Cunha-Silva, Sara L. Kuberski, Kourtney A. Dalzell, Joseph A. Cox, M. Julia Arcos-Martínez, and Luís E. Arroyo-Mora (July 6 - July 9, 2021).
  19. June 2nd, 2021. Tatiana Trejos, Meghan Prusinowski, Zachary Andrews. Forensic Examination of Duct Tape Physical Fits: Interlaboratory Results, NIST-OSAC Trace Subcommittee (oral)
  20. March 2021, Luis Arroyo, Tatiana Trejos, Korina Menking Hoggatt, Colby Ott, Courtney Vander Pyl, Kourtney Dalzell, Bill Feeney. Detection of gunshot residues from leaded and non-leaded ammunition by electrochemical sensors and LIBS, PITTCON 2021 (invited speaker)
  21. March 2021, Tatiana Trejos, Luis Arroyo, Korina Menking Hoggatt and Courtney Vander Pyl. LIBS as an emerging method for the detection of firearm discharge residues, NIJ (National Institute of Justice) -Emerging Analytical Methods for Chemical and Biological Forensic Evidence Session, PITTCON 2021 (invited speaker)
  22. Pittcon Conference and Expo. Virtual Event. “Portable Raman Spectroscopy and Mass Spectrometry Techniques for the Analysis of Seized Drug: TacticID® and AccuTOF™-DART”. Travon Cooman, Colby Ott, Kourtney Dalzell, Amber Burns, Edward Sisco, Luis E. Arroyo. March 8-12, 2021.
  23. Pittcon Conference and Expo. Virtual Event. “Integration of Electrochemistry and Raman Spectroscopy for Detection of Drugs of Abuse”. Colby E. Ott, Jerson González-Hernández, Travon Cooman, Kylea M. Mathison, Kourtney A. Dalzell, Sara L. Kuberski, William J. Feeney, Ana L. Alvarado-Gámez, Roberto Urcuyo, M. Julia Arcos-Martínez, Aranzazu Heras, Alvaro Colina, Luis E. Arroyo. March 8-12, 2021.
  24. January 2021, Bill Feeney, Tatiana Trejos. Detection of OGSR and IGSR from the same collection stub using complexing agents and LC/MS/MS, 4th event Global Lecture Series, Crossing Forensic Borders (invited speaker)
  25. January 2021, Korina Menking-Hoggatt, C. Ott, Tatiana Trejos, Luis Arroyo.  Novel rapid detection of inorganic and organic gunshot residues using LIBS and electrochemistry: a population study, 4th event Global Lecture Series, Crossing Forensic Borders. (Invited speaker)
  26. Crossing Forensic Borders (CFB) Webinar. Extraction and quantitative analysis of fentanyl analogs and metabolites from complex biological specimens. Joseph Cox, Kylea Mathison, Colby Ott, Joseph DelTondo, James Kraner, Anthony P. DeCaprio, Luis E Arroyo-Mora.  Webinar host by WVU but organized by Amsterdam Center for Forensic Science and Medicine (CLHC). January 25, 2021. (7:00 to 9:00 am).
  27. February 2021, Courtney Vander Pyl, Korina Menking-Hoggatt, Claudia Martinez, Tatiana Trejos. Application of Laser-Based Methods for the Analysis of Gunshot Residue Originating from Modern Ammunition. AAFS 2021
  28. February 2021, Kourtney A. Dalzell, Korina Menking-Hoggatt, Colby E. Ott, Tatiana Trejos, and Luis Arroyo. Detection of Lead-Free Inorganic and Organic Gunshot Residue Using LIBS, Electrochemistry, and Machine Learning. AAFS 2021
  29. February 2021, Meghan Prusinowski, Zachary Andrews, Evie Nguyen, Tatiana Trejos. Development of Systematic Approaches for Physical Fit Comparisons of Trace Materials. Presented at Virtual AAFS Conference (E-Poster)
  30. December 2020. Tatiana Trejos and Luis Arroyo. Strengthening the Technical-Scientific and Quality Control Framework of the Judicial System in Costa Rica: from Crime Scene to the Expert Opinion in Courtroom. Department of State, Bureau of International Narcotics and Law Enforcement Affairs (INL), Costa Rica US Embassy, San Jose CR (oral)
  31. December 2020. Tatiana Trejos, Andria Mehltretter, , Meghan Prusinowski. An Interlaboratory Study on Interpretation and Report Writing in Forensic Comparison of Paint Trace Materials. NIST-OSAC Meeting (virtual, invited speaker)
  32. December 2020.  William Feeney. American Society of Crime Laboratory Directors (ASCLD) Forensic Research Committee “Lightning Talks” series: Emerging Techniques and Applications for Gunshot Residues (webinar, invited speaker).
  33. November 2020. Korina Menking-Hoggatt, Luis Arroyo, and Tatiana Trejos. Feasibility Study of Rapid Emerging Methods for the Analysis of Inorganic and Organic Gunshot Residues. 7º National Meeting of Forensic Chemistry / 4º Meeting of the Brazilian Society of Forensic Sciences (ENQFor/SBCF) online Joint Congress. (Virtual, oral, invited speaker)
  34. October 2020. Tatiana Trejos, Luis Arroyo, Colby Ott, Courtney Vander Pyl, Korina Menking Hoggatt and Kourtney Dalzell. Investigative leads using LIBS and orthogonal methods in crime laboratories and in the field, FACSS SCIX 2020, virtual conference.
  35. October 2020. Meghan Prusinowski, Zachary Andrews, Evie Brooks, Tatiana Trejos. Development and Validation of Systematic Methods for Physical Fit Examinations. [Virtual Oral Presentation]. Joint ASTEE and Northeastern Association of Forensic Scientists 46th Annual Conference Virtual: https://whova.com/portal/webapp/naofs_202010/
  36. September 2020. Korina Menking-Hoggatt, Eduard Pollock, Emily Heller, Courtney Vander Pyl, Claudia Martinez, Tatiana Trejos. Inorganic Gunshot Residues (IGSR) Microparticles Standard with Application to Method Development and Understanding Modern Ammunition. MAAFS Annual Meeting (Oral presentation, virtual, recipient of 2020 MAAFS Scholarship Award)
  37. July 2020. Luis Arroyo, Tatiana Trejos, and Korina Menking-Hoggatt. Development of a Versatile IGSR Microparticle Standard. 2020 Online Symposium: Current Trends in Forensic Trace Analysis (oral presentation, presenter and Symposium Program Chair)
  38. July 2020. Courtney Vander Pyl, Oriana Ovide, Colby Ott, Luis Arroyo and Tatiana Trejos. Quick Spectrochemical Methods for Detecting Gunshot Residues on Crime Scene Samples. Current Trends in Trace Analysis: 2020 Online Forensic Symposium Series (virtual, poster).
  39. July 2020. Claudia Martinez-Lopez, Oriana Ovide, Ruthmara Corzo, Zachary Andrews, Lauryn Alexander, Tatiana Trejos. Assessing the Elemental Homogeneity of Single Source Vehicle Glass by u-XRF, LIBS, and LA-ICP-MS. Current Trends in Forensic Trace Analysis: 2020 Online Symposium (virtual poster)
  40. July 2020. Evie Brooks, Zachary Andrews, Meghan Prusinowski, Tatiana Trejos. Development of a Systematic Method for Textile Physical Fit Comparisons. Current Trends in Forensic Trace Analysis: 2020 Online Symposium (virtual poster)
  41. July 2020. Korina Menking-Hoggatt, Luis Arroyo, Colby Ott, and Tatiana Trejos. Characterizing Inorganic and Organic Gunshot Residue by Laser Induced Breakdown Spectroscopy and Electrochemistry. Current Trends in Forensic Trace Analysis online forensic symposium. (Poster online presentation)
  42. May 2020. Courtney Vander Pyl, Korina Menking-Hoggatt, Claudia Martinez, Tatiana Trejos. Fast Spectrochemical Methods and Micro-Particle Standards to Facilitate Transfer and Persistence Studies of Inorganic and Organic Gunshot Residues. First Online Forensic Graduate Symposium, Morgantown, WV (poster, symposium organizer) (AWARD for “Best Research e-Poster Presentation-First Place)
  43. May 2020. Meghan Prusinowski, Evie K. Brooks, Pedram Tavadze, Aldo Romero, Tatiana Trejos. Validation of a Quantitative Method for Assessing Physical Fits of Trace Materials through Inter-Laboratory Studies and Computational Algorithms. First Online Forensic Graduate Symposium, Morgantown, WV (poster, symposium organizer)
  44. May 2020. Korina Menking-Hoggatt, Tatiana Trejos. Characterization of Modern Inorganic Gunshot Residue Micro-Particles for Enhancement of Forensic Analysis. First Online Forensic Graduate Symposium, Morgantown, WV (oral, symposium organizer)
  45. May 2020. Colby E. Ott, Pedro J. Calderón-Arce, Kourtney A. Dalzell, Hugo Cunha-Silva, Ana L.  Alvarado-Gámez, M. Julia Arcos-Martínez, Tatiana Trejos, Luis E. Arroyo. Electrochemistry: A Powerful Analytical Technique for the Analysis of Forensic Evidence. First Online Forensic Graduate Symposium, Morgantown, WV (poster, symposium organizer)
  46. May 2020. Evie Brooks, Meghan Prusinowski, Andria Mehltretter, Tatiana Trejos. Evaluation of Spectral Comparison and Contrast Methods for the Interpretation of X-ray Fluorescence Spectra of Electrical Tape Backings. First Online Forensic Graduate Symposium, Morgantown, WV (poster, symposium organizer)
  47. May 2020. Emily Haase, Luis Arroyo, Tatiana Trejos. Evaluation of the Chemical Profile of Counterfeit Pharmaceutical Packaging Using LIBS and ATR-FTIR. First Online Forensic Graduate Symposium, Morgantown, WV (poster, symposium organizer)
  48. May 2020. Lauryn Alexander, Zachary Andrews, Oriana Ovide, Claudia Martinez-Lopez, Tatiana Trejos. Evaluation of the Performance of Laser Induced Breakdown Spectroscopy Elemental Profiles for the Forensic Comparison of Glass. First Online Forensic Graduate Symposium, Morgantown, WV (poster, symposium organizer)
  49. April 2020. Emily Heller, Korina Menking-Hoggatt, Claudia Martinez-Lopez, and Tatiana Trejos. Analysis of Inorganic GSR Microparticles using Laser Induced Breakdown Spectroscopy (LIBS), Annual Undergraduate Symposium, Morgantown, WV (e-video poster)
  50. April 2020. Zachary Andrews, Oriana Ovide, , Claudia Martinez-Lopez, PhD, Ruthmara Corzo, PhD Lauryn Alexander, BS, Tatiana Trejos, PhD. Forensic Investigations of Vehicle-Related Crimes: Is it Elemental? Annual Undergraduate Symposium, Morgantown, WV (e-video poster)
  51. March 2020. Tatiana Trejos, Evie Brooks, Meghan Prusinowski. Interlaboratory Study on Physical Fits of Duct Tapes: Lessons Learned and Next Steps. NIST-OSAC meeting, Norman, OK (oral)
  52. March 2020. Korina Menking-Hoggatt, Emily Heller, Edward M. Pollock, Claudia Martinez, Tatiana Trejos. Development and Characterization of Inorganic Gunshot Residue (IGSR) Standard Micro-particles to Enhance Understanding of Modern Ammunition. The NIJ Forensic Science Symposium at Pittcon, Chicago, IL (poster)
  53. February 2020, Oriana Ovide, Ruthmara Corzo, Tatiana Trejos, Analysis of Modern Glass for Forensic Comparisons Using micro-XRF, Louis Stokes Alliance for Minority Participation (LSAMP) KY-WV 13th Annual Research Symposium, Poster
  54. February 2020. Tatiana Trejos and Luis Arroyo. Rapid Detection of Inorganic and Organic Firearm Discharge Residues by Laser-Induced Breakdown Spectroscopy (LIBS) and Electrochemical Sensors. 2020 National Institute of Justice Forensic Science Research and Development Symposium, Anaheim, CA (oral, invited)
  55. February 2020. Korina Menking-Hoggatt, Colby E. Ott, Courtney H. Vander Pyl, Luis Arroyo, James Curran, Tatiana Trejos. The Power of Statistics and Machine Learning Applied to Orthogonal Rapid Methods for the Identification of Inorganic Gunshot Residue (IGSR) and Organic Gunshot Residue (OGSR) Markers. 72nd AAFS Annual Scientific Meeting, Anaheim, CA (oral)
  56. February 2020. Korina Menking-Hoggatt, Edward M. Pollock, Tatiana Trejos. A Novel Approach for the Collection and Characterization of Inorganic Gunshot Residue (IGSR) Standards, 72nd AAFS Annual Scientific Meeting, Anaheim, CA (poster)
  57. February 2020. Colby E. Ott, Pedro Calderón-Arce, Korina Menking-Hoggatt, Courtney H. Vander Pyl, Ana L. Alvarado-Gámez, Tatiana Trejos, Luis E. Arroyo. An Analysis of Organic and Inorganic Gunshot Residues (OGSR and IGSR) Via Electrochemical Methods with Screen- Printed Carbon Electrodes and Nanoparticle Modifications, 72nd AAFS Annual Scientific Meeting, Anaheim, CA (poster)
  58. February 2020. Courtney H. Vander Pyl, Oriana Ovide, Colby E. Ott, Luis E. Arroyo, Tatiana Trejos. A Chemical Analysis of Gunshot Residues (GSRs) for Investigative Leads and Reconstruction of Firearm- Related Incidents, 72nd AAFS Annual Scientific Meeting, Anaheim, CA (poster)
  59. February 2020. William Feeney, Suzanne Bell, Luis E. Arroyo, Tatiana Trejos. The Characterization and Detection of Organic and Inorganic Firearm Discharge Residue (FDR) Using High-Performance Liquid Chromatography-Triple Quadrupole (HPLC-QQQ) and Host- Guest Chemistry, 72nd AAFS Annual Scientific Meeting, Anaheim, CA (oral)
  60. February 2020. Meghan Prusinowski, Evie K. Brooks, Pedram Tavadze, Aldo Romero, Tatiana Trejos. Assessing the Value of a Physical End Match in Trace Evidence: A Comparison of Human-Based and Computational-Based Approaches, 72nd AAFS Annual Scientific Meeting, Anaheim, CA (oral)
  61. February 2020. Evie K. Brooks, Andria Mehltretter, Tatiana Trejos. Parameter Optimization and Validation for Qualitative Elemental Analysis of Electrical Tape Backings by X-Ray Fluorescence (XRF), 72nd AAFS Annual Scientific Meeting, Anaheim, CA (oral)
  62. February 2020. Oriana Ovide, Zachary B. Andrews, Ruthmara Corzo, Tatiana Trejos. An Assessment of Elemental Homogeneity in Glass Using Micro-X-Ray Fluorescence Spectroscopy (μ-XRF) and Laser-Induced Breakdown Spectroscopy (LIBS) , 72nd AAFS Annual Scientific Meeting, Anaheim, CA (oral)
  63. February 2020. Emily A. Haase, Mandy Ho, Tatiana Trejos, Luis E. Arroyo. A Fast Examination of Counterfeit Pharmaceutical Packaging Through Laser-Induced Breakdown Spectroscopy (LIBS) and Attenuated Total Reflectance/Fourier Transform Infrared (ATR/FTIR) Spectroscopy, 72nd AAFS Annual Scientific Meeting, Anaheim, CA (oral)