Direct analysis in real time mass spectrometry for analysis of sexual assault evidence

Abstract

Characterization of lubricant residues as probative evidence serves to establish a connection between the victim and the perpetrator, and the availability of these details may lead to higher rates of prosecution and conviction, as well as more severe penalties. The methodology described here opens the way for the adoption of a comprehensive, rapid, and sensitive analysis for use in crime labs, while providing knowledge that can inform and guide criminal justice policy and practice.

Direct analysis in real time mass spectrometry with collision‐induced dissociation for structural analysis of synthetic cannabinoids

“…DART‐MS provides the ability to sample material directly, without the need for extractions, sample preparation, or chromatographic separations. These beneficial qualities have allowed DART‐MS to be applied towards an extremely wide range of analytes, including controlled substances, pesticides, fragrances, pepper spray, and residues associated with sexual assault, among many others …”

Analyzing Brazilian Driver’s License Authenticity by Easy Ambient Sonic-Spray Ionization Mass Spectrometry

“…An oligomeric distribution separated by 44 Da is also present. Figure 3(D [32]. Nonoxynol-9 is commonly used in micro-emulsion surfactant based inks used in electrophotographic imaging apparatuses and in a transfixed apparatus in solid ink jet printing [33].…”

Trace analysis of energetic materials via direct analyte-probed nanoextraction coupled to direct analysis in real time mass spectrometry

“…DART-MS, on the other hand, has become quite popular in forensic mass spectrometry research in recent years [2][3][4][5][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. In this study, DAPNe is coupled to DART-MS to diminish the specificity concerns of this popular technique.…”

“…DART-MS has shown success in forensic analyses of pharmaceuticals [13][14][15], biological samples [16,17], illicit drugs [18][19][20][21][22][23][24][25], chemical warfare agents [26], inks [27], and explosives [2][3][4][5]. Analyses of organic explosives directly from many surfaces including glass, asphalt shingle, polyurethane foam, wood and metal have typically yielded clean spectra [3].…”