Title: Revealing Individual Lifestyles through Mass Spectrometry Imaging of Chemical Compounds in Fingerprints
Authors: Paige Hinners, Kelly C. O’Neill, Young Jin Lee
Journal: Scientific Reports
Issue: Volume 8, Article number: 5149 (2018)
Fingerprints, specifcally the ridge details within the print, have long been used in forensic
investigations for individual identifcation. Beyond the ridge detail, fngerprints contain useful chemical
information. The study of fngerprint chemical information has become of interest, especially with mass
spectrometry imaging technologies. Mass spectrometry imaging visualizes the spatial relationship of
each compound detected, allowing ridge detail and chemical information in a single analysis. In this
work, a range of exogenous fngerprint compounds that may reveal a personal lifestyle were studied
using matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI). Studied
chemical compounds include various brands of bug sprays and sunscreens, as well as food oils, alcohols,
and citrus fruits. Brand diferentiation and source determination were possible based on the active
ingredients or exclusive compounds left in fngerprints. Tandem mass spectrometry was performed for
the key compounds, so that these compounds could be confdently identifed in a single multiplex mass
spectrometry imaging data acquisition.
Fingerprints consist of ridges and valleys that form a pattern unique to the individual. Te sweat and chemical
residues present on a fnger can leave ridge detail, or a latent fngerprint, on objects and surfaces encountered
by the fngers. Latent fngerprints have provided evidentiary value in forensic investigations for over a century,
mainly as a means of identifcation through pattern comparison. As technology and science have advanced, so has
the collection and interpretation of evidence within latent fngerprints. Chemical compounds in the residue contain detailed information about the individual depositing the fngerprint. Chromatography and mass spectrometry coupled methods, such as liquid chromatography-mass spectrometry (LC-MS) and gas chromatography-mass
spectrometry (GC-MS), provide chemical fngerprint information, but typically require multiple fngerprints
with no spatially relevant information1–3
For more details information go to the links bellow 👇
https://drive.google.com/file/d/1XMjldzGOobgNWeNIvMVzON9l38nUMzV3/view?usp=drivesdk
Link:http://links.govdelivery.com/track?type=click&enid=ZWFzPTEmbXNpZD0mYXVpZD0mbWFpbGluZ2lkPTIwMTgwOTEyLjk0ODEwNzIxJm1lc3NhZ2VpZD1NREItUFJELUJVTC0yMDE4MDkxMi45NDgxMDcyMSZkYXRhYmFzZWlkPTEwMDEmc2VyaWFsPTE3MzAyODgwJmVtYWlsaWQ9anlvdGlybW95cm95YmNkYUBnbWFpbC5jb20mdXNlcmlkPWp5b3Rpcm1veXJveWJjZGFAZ21haWwuY29tJnRhcmdldGlkPSZmbD0mbXZpZD0mZXh0cmE9JiYm&&&101&&&https://www.nature.com/articles/s41598-018-23544-7
.
Authors: Paige Hinners, Kelly C. O’Neill, Young Jin Lee
Journal: Scientific Reports
Issue: Volume 8, Article number: 5149 (2018)
Fingerprints, specifcally the ridge details within the print, have long been used in forensic
investigations for individual identifcation. Beyond the ridge detail, fngerprints contain useful chemical
information. The study of fngerprint chemical information has become of interest, especially with mass
spectrometry imaging technologies. Mass spectrometry imaging visualizes the spatial relationship of
each compound detected, allowing ridge detail and chemical information in a single analysis. In this
work, a range of exogenous fngerprint compounds that may reveal a personal lifestyle were studied
using matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI). Studied
chemical compounds include various brands of bug sprays and sunscreens, as well as food oils, alcohols,
and citrus fruits. Brand diferentiation and source determination were possible based on the active
ingredients or exclusive compounds left in fngerprints. Tandem mass spectrometry was performed for
the key compounds, so that these compounds could be confdently identifed in a single multiplex mass
spectrometry imaging data acquisition.
Fingerprints consist of ridges and valleys that form a pattern unique to the individual. Te sweat and chemical
residues present on a fnger can leave ridge detail, or a latent fngerprint, on objects and surfaces encountered
by the fngers. Latent fngerprints have provided evidentiary value in forensic investigations for over a century,
mainly as a means of identifcation through pattern comparison. As technology and science have advanced, so has
the collection and interpretation of evidence within latent fngerprints. Chemical compounds in the residue contain detailed information about the individual depositing the fngerprint. Chromatography and mass spectrometry coupled methods, such as liquid chromatography-mass spectrometry (LC-MS) and gas chromatography-mass
spectrometry (GC-MS), provide chemical fngerprint information, but typically require multiple fngerprints
with no spatially relevant information1–3
For more details information go to the links bellow 👇
https://drive.google.com/file/d/1XMjldzGOobgNWeNIvMVzON9l38nUMzV3/view?usp=drivesdk
Link:http://links.govdelivery.com/track?type=click&enid=ZWFzPTEmbXNpZD0mYXVpZD0mbWFpbGluZ2lkPTIwMTgwOTEyLjk0ODEwNzIxJm1lc3NhZ2VpZD1NREItUFJELUJVTC0yMDE4MDkxMi45NDgxMDcyMSZkYXRhYmFzZWlkPTEwMDEmc2VyaWFsPTE3MzAyODgwJmVtYWlsaWQ9anlvdGlybW95cm95YmNkYUBnbWFpbC5jb20mdXNlcmlkPWp5b3Rpcm1veXJveWJjZGFAZ21haWwuY29tJnRhcmdldGlkPSZmbD0mbXZpZD0mZXh0cmE9JiYm&&&101&&&https://www.nature.com/articles/s41598-018-23544-7
.
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