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Electron, ion and photon-based microanalysis methods, instrumentation and protocols are developed to advance measurement science towards the elemental and
The goal of this focus area is to leverage the wealth of chemical information present in fingerprint deposits for novel forensic applications. This includes
The goal of this focus area is to enhance the measurement science capabilities and address measurement science challenges present in the analysis of fire debris
The NIST Forensic Chemistry Measurement Program aims to both develop and facilitate the implementation of scientifically valid, robust measurement tools for the
The goal of this focus area is to improve the field of glass evidence analysis by developing new matrix-matched glass standards and by evaluating more objective
Ion mobility spectrometry (IMS) is widely used for national security and law enforcement, placed at key transportation checkpoints such as airports and border
Provide the underpinning measurement science needed to advance threat detection, improve the accuracy of forensics measurements and ensure the reliability of
Surface desorption ambient mass spectrometry enables direct solid surface interrogation for sampling and ionization of trace analytes. This project encompasses
Thermal desorption ambient mass spectrometry decouples analyte desorption and ionization. Here, analytes are thermally desorbed directly from a primary surface
Toxicology represents the newest focus area for our group. The goal of this work is to compliment traditional toxicological research with development of
Screening of people and their belongings including luggage, vehicles, and packages for the presence of trace residues of explosives and narcotics (trace
We develop and deploy portable vapor sampling instruments to collect detailed chemical information in the field, in sampling situations where the laboratory is
We develop and evaluate dynamic headspace sampling methods to capture and concentrate vapors from single components (solid or liquid) to determine vapor