Mass Spectrometry: Reveal Secrets



There is something unique pattern in fingerprints of an individual which constitute of valleys and ridges. Mass Spectrometry imaging of chemical compounds in fingerprints help in determination of lifestyle of an individual. Mass spectrometry imaging visualizes the spatial relationship of each compound detected, allowing ridge detail and chemical information in a single analysis. The presence of a single compound may not be sufficient to provide detailed information about an individual, but the compilation of multiple compounds present in a latent fingerprint may give insight into one’s lifestyle.
Chromatography and mass spectrometry coupled methods, such as liquid chromatography-mass spectrometry (LC-MS) and gas chromatography-mass spectrometry (GC-MS), provide chemical fingerprint information, but typically require multiple fingerprints with no spatially relevant information. The multiplex method allowed MS/MS of citric acid, tartaric acid, and malic acid from the precursor mass list, which matches with the MS/MS library.
Apart from crest pattern, hidden evidentiary values are obtained from the exogenous chemical compounds found in latent fingerprints. Lifestyle information of an individual can be determined from chemical compounds of products applied, food and beverages consumed, and various environmental contacts in a latent fingerprint. MALDI-MSI proved to be effective at ionizing wide range of exogenous compounds in conjunction with silver sputter coating as a matrix. Through the multiplex capabilities the simultaneous collection of a HRMS image along with MS/MS allowed spatial determination and confident compound identification in a single fingerprint analysis. Before applying to real forensic cases more work needs to be done such as a large population study accompanied with statistical analysis or aged (non-ideal) sample studies. Lifestyle determination based on fingerprint chemical compounds is facilitated by exogenous compound database combined with multiplex MSI.

All such gripping discussions will unlock the knowledge and other unknown facts at the 10th International Conference on Mass Spectrometry and Chromatography during October 08-09, 2018 in Dubai, UAE. This conference provides a matchless stage for the world’s most successful researchers and serves as a best platform to open your thoughts and showcase them in front of diverse international audience. Get ready to boost up yourself with such fascinating topics at Mass Spectro Meet 2018.

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