National Center for Forensic Science

Sigman Presentations

2016

Michael Sigman “ A Probabilistic Approach to Fire Debris Analysis Based on Target Compound Analysis”, University of Amsterdam, July 1, 2016.

Dana-Marie Dennis, Mary R. Williams and Michael E. Sigman, “Investigative Predictions of Smokeless Powder Manufacturers”, American Academy of Forensic Sciences 68th Annual Scientific Meeting, Las Vegas, NV, February 22 – 27, 2016.

Michael E. Sigman and Mary R. Williams, “Challenges for Implementing a New Paradigm in Fire Debris Analysis and Reporting”, American Academy of Forensic Sciences 68th Annual Scientific Meeting, Las Vegas, NV, February 22 – 27, 2016.

2015

Mary R. Williams MS* and Michael E. Sigman, “How Forensic Databases Aid Forensic Scientists”, 7th European Academy of Forensic Science Conference, Prague, Czech Republic, September 6 – 11, 2015.

Michael Sigman and Mary Williams, “Assessing evidential value in fire debris analysis through chemometric approaches”, 7th European Academy of Forensic Science Conference, Prague, Czech Republic, September 6 – 11, 2015.

Michael E. Sigman, “Evidentiary Value”, 1st International Congress on Evaluation of Tecnical and Legal Operational Police  (I CONGRESO INTERNACIONAL DE EVALUACION TECNICA Y JURIDICA DE LA OPERATIVA POLICIAL), April 15 – 17, Jerez de la Frontera, Spain.

Martin Lopatka, Michael E. Sigman, Gabriel Vivo-Rtuyols, Marjan J. Sjerps, and Mary R. Williams, “Class-Conditional Feature Modeling for Ignitable Liquid Classification with Substantial Substrate Contribution in Fire Debris Analysis”, Pittsburgh Conference (PITTCON), New Orleans, LA, March 8 – 12, 2015.

Michael E. Sigman, “Statistical Approaches to Decision Making in Fire Debris Analysis”, Pittsburgh Conference (PITTCON), New Orleans, LA, March 8 – 12, 2015.

Alejandra Flores; Michael E. Sigman, PhD; Andres D. Campiglia, PhD, “Examination of Statistical Methods for Forensic Analysis of Highly Similar Absorbance Spectra From Textile Fibers”, American Academy of Forensic Sciences 67th Annual Scientific Meeting, Orlando, FL, February 16-21, 2015.

Quashanna Price; Mary R. Williams, MS; Michael E. Sigman, PhD, “Fourier-Transform Infrared Spectroscopy Investigations of Smokeless Powders”, American Academy of Forensic Sciences 67th Annual Scientific Meeting, Orlando, FL, February 16-21, 2015.

Jessica H. Kindell, BS; Mary R. Williams, MS; Michael E. Sigman, PhD, “Weathering and Microbial Degradation of Ignitable Liquids”, American Academy of Forensic Sciences 67th Annual Scientific Meeting, Orlando, FL, February 16-21, 2015.

Dana-Marie K. Dennis, BS; Jessica L. Frisch-Daiello, PhD; Mary R. Williams, MS; Michael E. Sigman, PhD, “Smokeless Powders Database at the National Center for Forensic Science”, American Academy of Forensic Sciences 67th Annual Scientific Meeting, Orlando, FL, February 16-21, 2015.

Michael E. Sigman, PhD; Mary R. Williams, MS, “Application of Likelihood Ratios in Fire Debris Analysis”, American Academy of Forensic Sciences 67th Annual Scientific Meeting, Orlando, FL, February 16-21, 2015.

Patrisha L. Meyers, BA; Lorraine Humbert, BA; John J. Schultz, PhD; Lana Williams, PhD, “A Preliminary Study for Estimating Postmortem Interval of Fabric Degradation in Central Florida”, American Academy of Forensic Sciences 67th Annual Scientific Meeting, Orlando, FL, February 16-21, 2015.

Ashley Green; John J. Schultz, PhD; Jan C. Garavaglia, MD, “Ritualistic Use of Human Skeletal Remains: Is It Forensically Significant?”, American Academy of Forensic Sciences 67th Annual Scientific Meeting, Orlando, FL, February 16-21, 2015.

Ellen M. Schuetzner, BA; Thomas W. Vastrick, BS; Mark Johnson, PhD; Kevin P. Kulbacki, MSFS, “Frequency Occurrence of Handwriting and Hand Printing Characteristics”, American Academy of Forensic Sciences 67th Annual Scientific Meeting, Orlando, FL, February 16-21, 2015.

Thomas W. Vastrick, BS, “Standardization of Conclusions: Meeting Current Needs”, American Academy of Forensic Sciences 67th Annual Scientific Meeting, Orlando, FL, February 16-21, 2015.

2013

Shandricka Stephenson, Alejandra Flores, Michael E. Sigman, “Analysis of Similar Visible Absorption Spectra from Textile Fibers”, 89th Annual Florida American Chemical Society Meeting and Exposition (FAME), May 9 – 11, 2013, Palm Harbor, FL.

Michael E. Sigman, Mary R. Williams “Ignitable Liquid Residue Classification by Combined Target Factor Analysis and Bayesian Soft Classification”, 89th Annual Florida American Chemical Society Meeting and Exposition (FAME), May 9 – 11, 2013, Palm Harbor, FL.

Jessica L. Frisch-Daiello, Mary R. Williams, Michael E. Sigman  “Application of Self-Organizing Feature Maps to Analyze the Relationship Between Ignitable Liquids and Selected Mass Spectral Ions”,  89th Annual Florida American Chemical Society Meeting and Exposition (FAM

Alejandra Flores, Michael E. Sigman, “Application of Statistical Methods of Analysis to Highly Similar Absorption Spectra from Textile Fibers”, 89th Annual Florida American Chemical Society Meeting and Exposition (FAME), May 9 – 11, 2013, Palm Harbor, FL.

Heather A. Zimmerman, John J. Schultz, Michael E. Sigman, “Use of Handheld X-ray Fluorescence (HHXRF) spectrometry and Multivariate Statistical Analysis for Distinguishing Osseous and Dental Tissue from Non-Bone Materials in Forensic Anthropology”, 89th Annual Florida Am

Dana-Marie K. Dennis, Erin E. Waddell, Mary R. Williams, Michael E. Sigman, “Classification of Smokeless Powders by Cluster Analysis”, 89th Annual Florida American Chemical Society Meeting and Exposition (FAME), May 9 – 11, 2013, Palm Harbor, FL.

Mary R. Williams, Erin Waddell, Jessica L. Frisch-Daiello, Michael E. Sigman, “Hierarchical Cluster Analysis of Ignitable Liquids”, 89th Annual Florida American Chemical Society Meeting and Exposition (FAME), May 9 – 11, 2013, Palm Harbor, FL.

Erin E. Waddell, Mary R. Williams, Michael E. Sigman “Comparison of Chemometric Methods for the Detection and Classification of Ignitable Liquid Residues in Fire Debris”, 89th Annual Florida American Chemical Society Meeting and Exposition (FAME), May 9 – 11, 2013, Palm

Michel E. Sigman, Mary R. Williams “Soft Classification by Combined Target Factor Analysis and Bayesian Decision Theory,” American Academy of Forensic Sciences 65th Anniversary Meeting, Washington, DC, February 18 – 23, 2013.

Dee A. Turner, John V. Goodpaster, Mary R. Williams, Michael E. Sigman “A Comprehensive Study of Weathering and Microbial Degradation of Ignitable Liquids,” American Academy of Forensic Sciences 65th Anniversary Meeting, Washington, DC, February 18 – 23, 2013.

Erin E. Waddell, Mary R. Williams, Michael E. Sigman “Comparison of SIMCAA with LDA and QDA for the Identification and Classification of Ignitable Liquid Residues,” American Academy of Forensic Sciences 65th Anniversary Meeting, Washington, DC, February 18 – 23, 2013.

Mary R. Williams, Michael E. Sigman, Dee A. Turner, John V. Goodpaster “ Expansion of the ILRC Daatabase: Addition of Weathered and Biologically Degraded Liquids” American Academy of Forensic Sciences 65th Anniversary Meeting, Washington, DC, February 18 – 23, 2013.

Dana-Marie K. Dennis, Michael E. Sigman, Mary R. Williams “Classification of Smokeless Powders by Cluster Analysis,” American Academy of Forensic Sciences 65th Anniversary Meeting, Washington, DC, February 18 – 23, 2013.

2012

Michael E. Sigman, Caitlin Rinke “Discriminant Analysis in the Presence of Interferences: Combined Appliation of Target Factor Analysis and a Bayesian Soft-Classifier,” SciX 2012 (39th Annual Meeting of FACSS), Kansas City, MO, September 30 – October 5, 2012.

Matthieu Baudelet, Yuan Liu, Matthew Weidman, Michael Sigman; Martin Richardson “Fifty Years of LIBS and No Limits for Analysis,” SciX 2012 (39th Annual Meeting of FACSS), Kansas City, MO, September 30 – October 5, 2012.

Michael E. Sigman, Liqiang Ni, “Nonparametric Permutation Hypothesis Testing: Application ot forensic Physical Evidence,” SciX 2012 (39th Annual Meeting of FACSS), Kansas City, MO, September 30 – October 5, 2012.

Mary Williams and Michael E. Sigman, “National Center for Forensic Science and Technical Working Group for Fire and Explosions Databases”, European Academy of Forensic Sciences, The Hague, Netherlands, Aug. 20 – 24, 2012.

Michael E. Sigman, Mary R. Williams, Jennifer Lewis and Kelly McHugh-Pitan “Ignitable Liquid Residue Classification by Combined Target Factor Analysis and Bayesian Soft Classification”, European Academy of Forensic Sciences, The Hague, Netherlands, Aug. 20 – 24, 2012.

Erin E. Waddell , Caitlin N. Rinke, Emma T. Song, Mary R. Williams, Michael E. Sigman, “ASTM Classification of Ignitable Liquids and Residues by Chemometric Techniques”, European Academy of Forensic Sciences, The Hague, Netherlands, Aug. 20 – 24, 2012.

Caitlin N. Rinke, Michael E. Sigman, “Discriminant Analysis in the Presence of Interferences: Combined Application of Target Factor Analysis and a Bayesian Soft Classifier. 88th Annual Florida American Chemical Society Meeting and Exposition (FAME), May 17 – 19, 2012, Pa

Michael E. Sigman, Catlin N. Rinke, Mary R. Williams, “Application of a Nonparametric Permutation Test for the Analysis of LIBS Spectra for Glass Samples,” 88th Annual Florida American Chemical Society Meeting and Exposition (FAME), May 17 – 19, 2012, Palm Harbor, FL.

Erin E. Waddell, Mary R. Williams, Michael E. Sigman “Chemometric-Assisted Detection and Classification of Ignitable Liquid Residue in Fire Debris,” 88th Annual Florida American Chemical Society Meeting and Exposition (FAME), May 17 – 19, 2012, Palm Harbor, FL.

Michael E. Sigman, “Matrix Independent Analyte Identification and Classification,” University of Cadiz, Cadiz, Spain, May 4, 2012.

Michael E. Sigman, “Nonparametric Permutation Hypothesis Testing: Applications to Physical Evidence,” University of Malaga, Malaga, Spain, May 2, 2012.

Michael E. Sigman, “Efforts towards Development of a Shared International Database of Ignitable Liquids for use in Fire Debris Analysis,” Netherlands Forensic Institute, The Hague, Netherlands, April 26, 2012.

Michael E. Sigman, Caitlin Rinke, Liqiang Ni, Katie M. White, “Nonparametric Permutation Hypothesis Testing: Applications to Physical Evidence.” 64th Annual Meeting of the American Academy of Forensic Sciences, Feb. 20 – 25, 2012, Atlanta, Ga.

Caitlin Rinke, Erin Waddell, Mary R. Williams, Michael Sigman, and Emma Song, “ASTM Classification of Ignitable Liquids and Residues by Chemometric Techniques.” 64th Annual Meeting of the American Academy of Forensic Sciences, Feb. 20 – 25, 2012, Atlanta, Ga.

Mary R. Williams; Michael Sigman,”Fire Debris Software” 64th Annual Meeting of the American Academy of Forensic Sciences, Feb. 20 – 25, 2012, Atlanta, Ga.

2011

Sigman, ME “Ignitable Liquids Reference Collection Panel: Present Research”, NIJ Conference, Washington D.C., June 21, 2011.

Rinke, C. N.; Waddell, E. E.; Sigman, M. E.; Williams, M. R. “Chemometric Assisted Detection and Classification of Ignitable Liquids in Fire Debris:, Pittsburg Conference and Exposition, March 13 – 18, 2011, Atlanta, GA.

White, K. M.; Williams, M. R.; Sigman, M. E. “Chemometric Discrimination of Textile Fibers Treated with Structurally –similar Dye Pairs”; Pittsburg Conference and Exposition, March 13 – 18, 2011, Atlanta, GA.

Williams, M. R.; Lewis, J.; Waddell, E. E.; Rinke, C. N. “Advancing Fire Debris Analysis Through Chemometrics”; Pittsburg Conference and Exposition, March 13 – 18, 2011, Atlanta, GA.

Williams, M. R.; Sigman, M. E. “Advancing Fire Debris Analysis through Chemometrics: An Overview of Research at the National Center for Forensic Science;” 63nd Annual Meeting of the American Academy of Forensic Sciences, Feb. 21 – 26, 2011, Chicago, IL.

Lewis, J.; Williams, M. R.; Sigman, M. E. “Identification of Ignitable Liquid Classes by Target Factor Analysis of Total Ion Spectra”, 63nd Annual Meeting of the American Academy of Forensic Sciences, Feb. 21 – 26, 2011, Chicago, IL.

Waddell, E.; Rinke, C; Williams, M. R.; Sigman, M. E. “ Chemometric Assisted Detection and Classification of Ignitable Liquids in Fire Debris”, 63nd Annual Meeting of the American Academy of Forensic Sciences, Feb. 21 – 26, 2011, Chicago, IL.

Sigman, M. E.; Williams, M. R. “National Center for Forensic Science and Technical Working Group for Fire and Explosions Databases”, 63nd Annual Meeting of the American Academy of Forensic Sciences, Feb. 21 – 26, 2011, Chicago, IL.

2010

Michael E. Sigman and C. Douglas Clark “Analysis of Crude Product from the Synthesis of Triacetone Triperoxide (TATP) Explosive”, 10th International Symposium on the Analysis and Detection of Explosives (ISADE), Canberra, Australia, Nov. 21 – 25, 2010.

Caitlin Rinke, Christopher Brown, Matthieu Baudelet, Martin Richardson, Michael E. Sigman “A New Paradigm for Substrate Independent Discrimination of Organic and Explosive Materials by Target Factor Analysis of Molecular Optical Signatures”, Chemical and Biological De

Sigman ME, Williams MR “Application of Target Factor Analysis to the Classification of Ignitable Liquids from Fire Debris “ 37th Federation of Analytical Chemistry and Spectroscopy Society Meeting, Oct. 17 – 21, Raleigh, NC.

Sigman, ME “Chemometrics Applications in LIBS Discussion Panel “ LIBS 2010, Sept. 13 – 17, 2010, Memphis, TN.

Rinke, CN; Brown, C; Clark, CD; Baudelet, M; Richardson, M; Sigman, M “Substrate Independent Discrimination of Organic and Explosive Materials via Target Factor Analysis of Their Molecular Optical Signature” International Symposium on Spectral Sensing Research (ISSSR)

Sigman, ME “Application of Chemometrics and GC-MS Analysis for the Identification of Traces of Ignitable Liquids in Fire Debris Samples (2008-DN-BX-K069)” The NIJ Conference, June 14 – 16, 2010, Arlington, VA.

White KM; Williams, MR; Sigman, ME “Statistical Analysis of Visible Absorption Spectra and Mass Spectra Obtained from Dyed Acrylic Fibers” 62nd Annual Meeting of the American Academy of Forensic Sciences, Feb. 22 – 27, 2010, Seattle, WA.

McHugh, K; Williams, MR; Sigman ME “Automated Searching of an Ignitable Liquids Library of Summed Ion Spectra by Target Factor Analysis” 62nd Annual Meeting of the American Academy of Forensic Sciences, Feb. 22 – 27, 2010, Seattle, WA.

Sigman, ME; Williams, MR “A study of Complex Mixtures from Fire Debris by Summed Ion Spectra” 62nd Annual Meeting of the American Academy of Forensic Sciences, Feb. 22 – 27, 2010, Seattle, WA.

Sigman, ME; Clark, CD “Detection and Forensic Analysis of Triacetone Triperoxide (TATP) in Uninitiated and Initiated Samples” 62nd Annual Meeting of the American Academy of Forensic Sciences, Feb. 22 – 27, 2010, Seattle, WA.

2009

Sigman, ME “Forensic Analysis of Triacetone Triperoxide (TAT),” Annual Meeting of the Technical Working Group on Fire and Explosives (TWGFEX), September 13 – 14, 2009, Orlando, FL .

Frisch, JL; Clark, CD; Sigman, ME “Tandem Mass Spectrometry of Oligomeric Open-Chaine Peroxides,” 85th Annual Florida American Chemical Society Meeting and Exposition (FAME), May 14 – 16, 2009, Orlando, FL.

Moody, CM; Arceneaux, LA; Rinke, CN, White, KM; Williams, MR; Sigman, ME “Analysis of Black Pen Inks by Electrospray Ionization Mass Spectrometry (ESI-MS),” 85th Annual Florida American Chemical Society Meeting and Exposition (FAME), May 14 – 16, 2009, Orlando, FL.

McHugh, KM; Kazaros, CB; Castelbuono, JA; Williams, MR; Sigman, ME “Automated Searching of Ignitable Liquids Database by Summed Ion Spectra with Complementary Statistical Analysis”, (Poster Presentation)  85th Annual Florida American Chemical Society Meeting and Expo

Painter, K; Clark, CD; McCormick, M; Sigman, ME “Forensic Analysis of Triacetone Troperoxide (TATP) for Information on the Synthetic Route and Precursor Identity,” 85th Annual Florida American Chemical Society Meeting and Exposition (FAME), May 14 – 16, 2009, Orlando

McHugh, KM; Kazaros, CB; Castelbuono, JA; Williams, MR; Sigman, ME “Automated Searching of Ignitable Liquids Database by Summed Ion Spectra with Complementary Statistical Analysis”, (Oral Presentation)  85th Annual Florida American Chemical Society Meeting and Exposi

Sigman, ME; Clark, CD “Analysis of Triacetone Triperoxide (TATP)” 85th Annual Florida American Chemical Society Meeting and Exposition (FAME), May 14 – 16, 2009, Orlando, FL.

Moody, CM; Williams, MR; Sigman M; Arceneaus, LA; Rinke, C; White, K “Analysis of Black Pen Inks by Electrospray Ionization Mass Spectrometry,” 61st Annual Meeting of the American Academy of Forensic Sciences, Feb. 16 – 21, 2009, Denver, CO.

Williams MR; Sigman, M “Automated Searching of Ignitable Liquids Database by Summed Ion Spectra,” 61st Annual Meeting of the American Academy of Forensic Sciences, Feb. 16 – 21, 2009, Denver, CO.

Painter, KL; Clark, CD; McCormick, M; Sigman, M “Forensic Analysis of Triacetone Triperoxide (TATP) for Information on the Synthetic Route and Precursor Identity,” 61st Annual Meeting of the American Academy of Forensic Sciences, Feb. 16 – 21, 2009, Denver, CO.

2008

C. Bridge, M. Richardson, M. E. Sigman “Chemometric Analysis of LIBS Data for Organic Analytes,” LIBS 2008, Berlin, Germany, September 21 – 26, 2008.

M. E. Sigman “ Ignitable Liquids Reference Collection and Database,” European Network of Forensic Scientists, Fire and Explosion Technical Working Group 11th Annual Meeting, Rome, Italy, September 16 – 20, 2008.

M. E. Sigman “Forensic Analysis of Triacetone Triperoxide,” 1st International Symposium on Improvised Explosives, Rosh Hanikra, Israel, May 18-22, 2008.

E. M. McIntee, C. Bridge, J. D. Powell, M. E. Sigman “ Evaluation of Laser-Induced Breakdown Spectroscopy as a Contributing Technique in the Analysis of Automobile Paint Samples,” American Academy of Forensic Sciences, Washingron D.C., Feb. 18 – 23, 2008.

C. D. Clark, T. Caiano, R. Mullen, M. E. Sigman “Analysis of Triacetone Triperoxide (TATP) for Information on the Synthetic Route and Precursor Identity,” American Academy of Forensic Sciences, Washingron D.C., Feb. 18 – 23, 2008.

J. A. Castelbuono, M. R. Williams, J. G. Colca, C. E. Chasteen, M. E. Sigman, “Identification of Ignitable Liquids in the Presence of  Interfering Products in Fire Debris Analysis,” American Academy of Forensic Sciences, Washingron D.C., Feb. 18 – 23, 2008.

S. Linker, H. Miller, R. Smith, M. M. Houck, M. E. Sigman “United States Transferable Fiber Census,” American Academy of Forensic Sciences, Washingron D.C., Feb. 18 – 23, 2008.

2007

E. McIntee, C. Bridge and M. E. Sigman “Analysis of Automobile Paints by Laser-Induced Breakdown Spectroscopy (LIBS)” Trace Evidence Symposium, NIJ and FBI Laboratory Division, Clearwater Beach, Florida,  August 13-16,  2007.

C. D. Clark,  M. E. Sigman  “Analysis of  Triacetone Triperoxide (TATP) for Synthetic Route Characterization”, Trace Evidence Symposium, NIJ and FBI Laboratory Division, Clearwater Beach, Florida,  August 13-16,  2007.

J. A. Van Note, M. R. Williams, M. E. Sigman, “Analysis of Pen Inks by Liquid Chromatography-Mass Spectrometry with Electrospray Ionization,” Florida Annual Meeting and Exposition FAME 2007, American Chemical Society, Orlando, FL, May 10-12, 2007.

K. Steele, M. E. Sigman and C. D. Clark “Discrimination of Composition C-4 Plastic Explosives by GC/MS, ESI/MS and Direct Insertion Probe (DIP),” Florida Annual Meeting and Exposition FAME 2007, American Chemical Society, Orlando, FL, May 10-12, 2007.

E. McIntee, C. Bridge, M. E. Sigman “Application of Laser-Induced Breakdown Spectroscopy to Forensic Science: Analysis of Paint Samples,” Florida Annual Meeting and Exposition FAME 2007, American Chemical Society, Orlando, FL, May 10-12, 2007.

J. L. Frisch, M. E. Sigman, “Differentiation of Cotton Fabrics Using LC-ESI-MS of Extracted Oligosaccharides,” Florida Annual Meeting and Exposition FAME 2007, American Chemical Society, Orlando, FL, May 10-12, 2007.

C. D. Clark, M. E. Sigman, “Optimized Analysis of Triacetone Triperoxide by GC-MS”, Florida Annual Meeting and Exposition FAME 2007, American Chemical Society, Orlando, FL, May 10-12, 2007.

A. D. Campiglia*, M. Rex, M. E. Sigman “Fluorescence Line Narrowing Spectroscopy: A new Tool for Forensic Fiber Examination,” Florida Annual Meeting and Exposition FAME 2007, American Chemical Society, Orlando, FL, May 10-12, 2007.

Mary R. Williams, M. E. Sigman, Rebecca G. Ivy, “Individualization of Gasoline by Gas Chromatography/Mass Spectrometry and Covariance Mapping,” American Academy of Forensic Sciences Annual Meeting, San Antonio, TX, February 19-24, 2007.

M. E. Sigman, Douglas Clark, “Optimized Analysis of Triacetone Triperoxide by GC/MS,” American Academy of Forensic Sciences Annual Meeting, San Antonio, TX, February 19-24, 2007.

M. E. Sigman, Candice M. Bridge, “Glass Sample Discrimination by Laser Induced Breakdown Spectroscopy (LIBS),” American Academy of Forensic Sciences Annual Meeting, San Antonio, TX, February 19-24, 2007.

M. E. Sigman, Katie L. Steele, Charles D. Clark, “Discrimination of C-4 Plastic Explosives by GC/MS Analysis of Impurities Associated with the Manufacturing Process of RDX,” American Academy of Forensic Sciences Annual Meeting, San Antonio, TX, February 19-24, 2007.

Erin McIntee, Candice Bridge, Lt. Joseph Powell  and Michael E. Sigman* “Application of Laser-Induced Breakdown Spectroscopy to Forensic Science: Analysis of Paint Samples,”  NIJ 2007 General Forensics R&D Grantees Meeting, San Antonio, TX, February 20, 2007.

M. E. Sigman “Characterization of Triacetone Triperoxide (TATP) Synthetic By-Products for Source and Route Determination,” NIJ 2007 General Forensics R&D Grantees Meeting, San Antonio, TX, February 20, 2007.

2006

M. E. Sigman, M Williams, R Ivy, J Castelbono, “New Approaches to Interpreting Fire Debris Analysis Data,” Technical Working Group for Fire and Explosions (TWGFEX) Annual Meeting, Orlando, FL, Nov. 29, 2006.

Sigman, M. E. “2D Correlation Mass Spectrometry,” SERMACS 2006 – Southeastern Regional Meeting of the American Chemical Society, Augusta, GA, November 1-4, 2006.

Sigman, M. E.; Bridge, C.; Steele, K.; MacInnis, J. M. “Forensic Applications of Laser-Induced Breakdown Spectroscopy: Comparative Glass Analysis,”  LIBS 2006 – Laser Induced Plasma Spectroscopy and Applications, Montreal, Canada, September 5-9, 2006.

Richardson, M.; Brown, C.; Fisher, M.; Bernath, R.; Sigman, M. “Femtosecond Interaction Studies for Stand-off LIBS,” LIBS 2006 – Laser Induced Plasma Spectroscopy and Applications, Montreal, Canada, September 5-9, 2006.

Michael E. Sigman “Analysis of Inorganic Oxidizer Salts by ESI-MS,” Federation of Analytical Chemistry and Spectroscopy Societies Meeting, Orlando, FL , September 24-28, 2006.

Derek Dorrien and Michael E. Sigman “Single Fiber Dye Analysis by Liquid Chromatography Mass Spectrometry (LC-MS) With SWGMAT Dye Extraction Protocols,” Federation of Analytical Chemistry and Spectroscopy Societies Meeting, Orlando, FL , September 24-28, 2006.

Katie Steele,  Michael E. Sigman, Candice Bridge, Jean MacInnis, and Zach Parker “The Analysis of Commercial Blasting Agents by Laser Induced Breakdown Spectroscopy(LIBS), With Empasis on Methods for Heterogeneous Samples,” Federation of Analytical Chemistry and Spect

Candice Bridge Michael E. Sigman, Joseph Powell, Katie Steele, Jean MacInnis, and Mary Williams “Glass Sample Discrimination by Laser Induced Breakdown Spectroscopy (LIBS),” Federation of Analytical Chemistry and Spectroscopy Societies Meeting, Orlando, FL , September

C. Douglas Clark and Michael E. Sigman “Optimized Analysis of Triacetone Triperoxide by GC-MS,” Federation of Analytical Chemistry and Spectroscopy Societies Meeting, Orlando, FL , September 24-28, 2006.

Julie Bitter , Kristi George, C. Douglas Clark and Michael E. Sigman “Explosives Recovery Off of Solid Matrices Over Time,” Federation of Analytical Chemistry and Spectroscopy Societies Meeting, Orlando, FL , September 24-28, 2006.

Sigman, M.E., Bridge, C., Steele, K., MacInnis, J. M “Forensic Applications of Laser-Induced Breakdown Spectroscopy: Comparative Glass Analysis,” LIBS 2006, Montreal, Canada, September 5-8, 2006.

Mary R. Williams, Rebecca Ivy and Michael E. Sigman “Covariance Mapping in the Analysis of Ignitable Liquids by Gas Chromatography-Mass Spectrometry.” Florida American Chemical Society Meeting (FAME 2006) , May 11-13, 2006,Renaissance Orlando Hotel Airport, Orlando, F

Katie L. Steele, Candice M. Bridge and Michael E. Sigman “The analysis of Commercial Blasting Agents By Laser Induced Breakdown Spectroscopy (LIBS), with Emphasis on Methods for Heterogeneous Samples,” Florida American Chemical Society Meeting (FAME 2006) , May 11-13,

Kristi George, Julie Bitter and Michael E. Sigman “Explosive Recovery Off of Solid Matrices Over Time,” Florida American Chemical Society Meeting (FAME 2006) , May 11-13, 2006,Renaissance Orlando Hotel Airport, Orlando, FL.

Michael E. Sigman, Mary Williams “Comparative Analysis of Complex Mixtures by Covariance Mapping”, Florida American Chemical Society Meeting (FAME 2006) , May 11-13, 2006,Renaissance Orlando Hotel Airport, Orlando, FL.

Candice M. Bridge; Joseph Powell; Katie Vomvoris; Jean MacInnis; Michael E. Sigman, “Characterization of Automobile Float Glass With Laser Induced Breakdown Spectroscopy (LIBS) and Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS),” Florida Ameri

Michael E. Sigman “Application of Laser-Induced Breakdown Spectroscopy (LIBS) to Forensic Science: Analysis of Float Glass Samples,” General Forensics Technical Working Group, National Institute of Justice, Washington, DC, May 10, 2006.

Candice M. Bridge; Joseph Powell; Katie Vomvoris; Jean MacInnis; Michael E. Sigman, “Characterization of Automobile Float Glass With Laser Induced Breakdown Spectroscopy (LIBS) and Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS)” AAFS 58th Annu

Michael E. Sigman; Mary Williams  “Covariance Mapping as an Aid to Ignitable Liquids Classification and Rapid Database Searching” AAFS 58th Annual Meeting, February 20-25, 2006, Washington State Convention & Trade Center, Seattle, Washington.

Dorrien, D. M.; Sigman M. E. “Single Fiber Dye Analysis by Liquid Chromatography Mass Spectrometry (LC-MS) with SWGMAT Dye Extraction Protocols,” American Academy of Forensic Sciences Annual Meeting, Seattle, Washington, February 20-25, 2006.

Katie L. Vomvoris; Candice Bridge; Zachary M. Parker; Jean MacInnis; Michael Sigman “The Analysis of Commercial Blasting Agents by Laser Induced Breakdown Spectroscopy (LIBS), With Emphasis on Methods for Heterogeneous Samples”  AAFS 58th Annual Meeting, February 20-2

Michael E. Sigman, Candice Bridge, Kate Vomvoris and Jean MacInnis, “LIBS: A New Tool for Forensic Science,” 2006 LACSEA, Optical Society of America, Incline Village, NV, February 9, 2006.

M. E. Sigman “Equilibrium Partitioning Model Applied to RDX-Halide Adduct Formation in ESI-MS,” 230th National Meeting of the American Chemical Society Meeting, August 28 – September 1, 2005, Washington, DC.

2005

D. Dorrien,  M. E. Sigman “Analytical Approaches to Fiber Analysis for A Forensic Fiber Database,” Florida American Chemical Society Meeting, May 5-8, 2005, Orlando, FL.

M. Williams, M. E. Sigman “Activated Carbon Saturation and Chromatographic Distortion in Fire Debris Analysis”, Florida American Chemical Society Meeting, May 5-8, 2005, Orlando, FL.

M. E. Sigman “The Equilibrium Partitioning Model Applied to RDX-Halide Adduct Formation in ESI-MS,”  Florida American Chemical Society Meeting, May 5-8, 2005, Orlando, FL.

M. E. Sigman, “Characterization of Emulsions, Slurries and Water-gels and Plastic Bonded Explosives,” 17th Sanibel Conference on Mass Spectrometry – Mass Spectrometry in Forensic Science and Counterterrorism, Clearwater Beach, FL, January 28 – February 1, 2005.

M. E. Sigman, “Characterization of Emulsions, Slurries and Watergels and Plastic Bonded Explosives,” FBI Academy, Quantico, VA, January 19, 2005.

M. E. Sigman “Silent Witness: Evidence That Does Not Forget,” University of Central Florida LIFE Presentation, March 1, 2005, University of Central Florida, Orlando, FL.

M. E. Sigman, M. R. Williams, D. Fernandes “Reliability Testing of Commercial Containers for Fire Debris Evidence STorage,” American Academy of Forensic Science 57th Annual Meeting, New Orleans, LA, February 21-26, 2005.

M. E. Sigman, M. Huang, B. Hornsby “Evaluation of Solvent Systems and Mobile Phases for the Extraction and Identification of Fiber Dyes by Liquid Chromatography Mass Spectrometry (LC-MS),” American Academy of Forensic Science 57th Annual Meeting, New Orleans, LA, Febr

M. R. Williams, D. Fernandes, C. Bridge, D. Dorrien, S. Elliott, M. E. Sigman “Adsorption Saturation and Chromatographic Distortion Effects on Passive Headspace Sampling With Activated Charcoal in Fire Debris Analysis,” American Academy of Forensic Science 57th Annual

2004

A. Campiglia, M. Sigman “Application of Fluorescence Line Narrowing Spectroscopy to Forensic Fiber Examination,” 31st Federation of Analytical Chemistry and Spectroscopy Societies Meeting, Portland, OR, October 3-7, 2004.

M. E. Sigman, M. Huang “Forensic Fiber Dye Analysis by LC-MS,” 31st Federation of Analytical Chemistry and Spectroscopy Societies Meeting, Portland, OR, October 3-7, 2004.

M. E. Sigman “Physical Evidence Research at the National Center for Forensic Science,” Forensic Resource Network – Crime Laboratory Improvement Program National Conference, September 20-22, 2004, Tampa, FL.

M. E. Sigman, A. Gapeev, R. H. Ilgner “Matrix Effets on Explosives Recovery and Detection,” American Academy of Forensic Science 56th Annual Meeting, Dallas, TX, February 16-21, 2004.

A. Gapeev, J. Yinon and M. E. Sigman “LC/MS of Explosives: RDX Characterization through Impurity Profiles,” American Academy of Forensic Science 56th Annual Meeting, Dallas, TX, February 16-21, 2004.

M. Huang, J. Yinon and M. E. Sigman “Fiber Dye Identification by High Performance Liuid Chromatography – Mass Spectrometry (HPLC-MS),” American Academy of Forensic Science 56th Annual Meeting, Dallas, TX, February 16-21, 2004.

M. R. Williams, D. Fernandez and M. E. Sigman “Performance Testing of Commercial Containers for Collection and Storage of Fire Debris Evidence,” American Academy of Forensic Science 56th Annual Meeting, Dallas, TX, February 16-21, 2004.

M. Sigman, “Physical Evidence Research National Center for Forensic Science,” Florida Department of Law Enforcement Annual Chemistry Discipline Meeting, October 6, 2003, Daytona Beach, FL.

2003

M. Sigman and R. H. Ilgner, “Analysis of Organic Explosives by Thermal Desorption GC/MS,” Florida American Chemical Society Meeting, May 8, 2003, Orlando, FL.

M. Sigman, “Accelerants and Explosives Research at NCFS,” Technical Working Group on Fire and Explosion Annual Meeting, November 17, 2003, Orlando, FL.

M. Sigman, “Physical Evidence Research National Center for Forensic Science,” International Association of Bomb Technicians and Investigators Annual Meeting, October 23, 2003, Tampa, FL.

Min Huang, Michael Sigman, “Fiber Dye Identification by Liquid Chromatography-Mass Spectrometry (LC-MS),”  Federation of Analytical Chemistry and Spectroscopy Societies, October 20, 2003, Ft. Lauderdale, FL.

M. Sigman and R. H. Ilgner, “Thermal Desorption GC/MS Analysis of Organic Explosives,” Federation of Analytical Chemistry and Spectroscopy Societies, October 20, 2003, Ft. Lauderdale, FL.

Sigman*, M. E.; Dabestani, R.; Hagaman, E. “Photochemical and Spectroscopic Studies of PAH Motion at Interfaces,” 125th National Meeting of the American Chemical Society, New Orleans, LA; March 23-27, 2003.

Huang*, M.; Yinon, Y.; Sigman, M. E. “Forensic Identification of Dyes Extracted from Textile Fibers by Liquid Chromatography-Mass Spectrometry (LC-MS),” American Academy of  Forensic Science 55th National Meeting, Chicago, IL, Feb. 18-23, 2003.

2002

Sigman, M. E. “Sample Introduction for GC Analysis of Explosives by Thermal Desorption.” 2nd Annual Technical Working Group on Fire and Explosion (TWGFEX) Symposium B House fires to Homeland Security,” Orlando, FL, October 15-18, 2002.

Sigman, M. E.; “Basic Research Needs for Countering Terrorism: Chemical Threats,” DOE/BES Workshop on “Basic Research Needs for Countering Terrorism,” Report of the Sub-Chair for Chemical Threats, Bethesda, MD, Feb. 28 – March 1, 2002.