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Science 8 August 2008:
Vol. 321. no. 5890, p. 805
DOI: 10.1126/science.1157199
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Brevia

Latent Fingerprint Chemical Imaging by Mass Spectrometry

Demian R. Ifa, Nicholas E. Manicke, Allison L. Dill, R. Graham Cooks*

Latent fingerprints (LFPs) potentially contain more forensic information than the simple identification of the subject; they may contain evidence of contacts with explosives or substances of abuse. Chemical information can also be useful in resolving overlapping LFPs from different individuals. We used desorption electrospray ionization mass spectrometry in an imaging mode to record compound-specific chemical fingerprints.

Department of Chemistry and Center for Analytical Instrumentation Development, Purdue University, West Lafayette, IN 47907, USA.

* To whom correspondence should be addressed. E-mail: cooks{at}purdue.edu

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Science. ISSN 0036-8075 (print), 1095-9203 (online)