Analyzing Brazilian Vehicle Documents for Authenticity by Easy Ambient Sonic-Spray Ionization Mass Spectrometry*

被引：19
作者：
Romao, Wanderson [1 ]
Vaz, Boniek G. [1 ]
Lalli, Priscila M. [1 ]
Bueno, Maria Izabel M. S. [2 ]
Correa, Deleon N. [1 ,3 ]
Telles, Virginia L. C. N. [3 ]
de Castro, Eustaquio V. R. [4 ]
Eberlin, Marcos N. [1 ]
机构：
[1] Univ Estadual Campinas, Inst Chem, Thomson Mass Spectrometry Lab, BR-13084971 Campinas, SP, Brazil
[2] Univ Estadual Campinas, Inst Chem, Xray Spect Grp, BR-13084971 Campinas, SP, Brazil
[3] Criminalist Inst Dr Octavio Eduardo de Brito Alva, BR-05507060 Sao Paulo, Brazil
[4] Univ Fed Espirito Santo, Dept Chem, BR-29060900 Vitoria, ES, Brazil
来源：
JOURNAL OF FORENSIC SCIENCES | 2012年 / 57卷 / 02期
基金：
巴西圣保罗研究基金会;
关键词：
forensic science; questioned documents; desorption; ionization techniques; ambient mass spectrometry; EASI-MS; Brazilian vehicle documents; DESORPTION ELECTROSPRAY-IONIZATION; BALLPOINT PEN INKS; THIN-LAYER-CHROMATOGRAPHY; INSTANTANEOUS TYPIFICATION; LIQUID-CHROMATOGRAPHY; RAMAN-SCATTERING; ECSTASY TABLETS; ELECTROPHORESIS; DIFFERENTIATION; BLACK;
D O I：
10.1111/j.1556-4029.2011.02005.x
中图分类号：
DF [法律]; D9 [法律]; R [医药、卫生];
学科分类号：
0301 ; 10 ;
摘要：
Using desorption/ionization techniques such as easy ambient sonic-spray ionization mass spectrometry (EASI-MS), it is possible to analyze documents of Brazilian vehicles for authenticity, providing a chemical profile directly from the surface of each document. A method for the detection of counterfeit documents is described, and the falsification procedure is elucidated. Forty authentic and counterfeit documents were analyzed by both positive and negative ion modes, EASI(+/-)-MS. EASI(+)-MS results identified the presence of (bis(2-ethylhexyl)phthalate plasticizer and of dihexadecyldimethylammonium biocide in both types of documents. For EASI(-)-MS results, the 4-octyloxybenzoic acid additive ([M + H]+: m/z 249) is present only in counterfeit documents. It was also found that counterfeit vehicle documents are produced via Laserjet printers. Desorption/ionization techniques, such as EASI-MS, offer therefore, an intelligent way to characterize the counterfeiting method.
引用
收藏
页码：539 / 543
页数：5
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