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Chemists Young-Jin Lee and Paige Hinners may have found a way to determine when a fingerprint was left behind. Larger photo. Photo by Christopher Gannon.
Science News

How old these fingerprints, mass spectrometry can tell

February 23, 2020 Iowa State University

Chemists used matrix-assisted laser mass spectrometry imaging to analyze compounds left on a surface then records the mass and electrical charge of each component within a sample, such as the various oils in a fingerprint. [read more …]

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