Analyzing Brazilian Driver’s License Authenticity by Easy Ambient Sonic-Spray Ionization Mass Spectrometry
| Autor: | Wanderley de Souza, Marcos N. Eberlin, Antony de Paula Barbosa, Jorge Jardim Zacca, Eduardo Morgado Schmidt, Marcos Fernando Franco, Werickson Fortunato de Carvalho Rocha, Deleon Nascimento Correa, Rodrigo Borges |
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| Rok vydání: | 2016 |
| Předmět: |
Information retrieval
Chemistry 010401 analytical chemistry Analytical chemistry Document analysis 01 natural sciences 0104 chemical sciences Ambient mass spectrometry Counterfeit 03 medical and health sciences Psychiatry and Mental health 0302 clinical medicine 030216 legal & forensic medicine Ionization mass spectrometry Inkjet printing |
| Zdroj: | American Journal of Analytical Chemistry. :342-350 |
| ISSN: | 2156-8278 2156-8251 |
| Popis: | Fast and unequivocal methods of questioned document analysis are essential in forensic science. Here, a desorption/ionization technique, EASI-MS, was assessed for its ability to investigate questioned driver’s licenses (DL). Two suspects DL, displaying the same personal data in the proper fields (name and ID numbers), but with different individual photos, showing similar impressions on microscopic analysis, and authentic standards documents specimens were used as test cases. Profiles from authentic DL surface were dominated by a set of few minor ions, mainly from the plasticizers bis(2-ethylhexyl)phthalate and dibutylphthalate. The seized suspect counterfeit DL on points from personal data and photo were, however, dominated by abundant diagnostic ions of m/z 463, 507, 551, 595, 639, 683, which confirmed counterfeiting. Surfynol® and Nonoxynol-9®, which are common constituents of inkjet printing, were detected in the counterfeiting areas by high-accuracy EASI(+)-FT-ICR MS. The EASI-MS technique is shown therefore to offer an attractive tool for forensic investigation of questioned documents. |
| Databáze: | OpenAIRE |
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