Chemical Imaging of Cyanoacrylate‐Fumed Fingerprints by Matrix‐assisted Laser Desorption/Ionization Mass Spectrometry Imaging

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2018-03-23
Authors
O'Neill, Kelly
Hinners, Paige
Lee, Young Jin
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Chemistry

The Department of Chemistry seeks to provide students with a foundation in the fundamentals and application of chemical theories and processes of the lab. Thus prepared they me pursue careers as teachers, industry supervisors, or research chemists in a variety of domains (governmental, academic, etc).

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The Department of Chemistry was founded in 1880.

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1880-present

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Abstract

For new techniques to be incorporated into forensic science, they must be compatible with current practices. Here, cyanoacrylate fuming, a common development technique for latent fingerprints, is studied for its compatibility with matrix‐assisted laser desorption/ionization mass spectrometry (MALDI‐MS) for chemical imaging of latent fingerprints. Half of a fingerprint was fumed while the other half was not; then, the changes in chemical composition and signal intensity were compared with MALDI‐MS imaging. No evidence was found that fingerprint compounds are chemically altered by fuming or their signal intensities affected. The only exceptions were significant signal loss for quaternary ammonium compounds from hygiene products and moderate signal loss for tertiary amine compounds. This result is in striking contrast with the previous attempts by others, which is attributed to the difference in instrumentation.

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This is the pre-peer reviewed version of the following article: O'Neill, Kelly C., Paige Hinners, and Young Jin Lee. "Chemical Imaging of Cyanoacrylate‐Fumed Fingerprints by Matrix‐assisted Laser Desorption/Ionization Mass Spectrometry Imaging." Journal of Forensic Sciences (2018), which has been published at DOI: 10.1111/1556-4029.13773. This version may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.

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Mon Jan 01 00:00:00 UTC 2018
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