Mass Spectrometry (IMAGE) Johannes Gutenberg Universitaet Mainz Caption From sample to accurate results -- mass spectrometry finds a common denominator at last. Credit photo/©: Stefan Tenzer, Mainz University Medical Center Usage Restrictions This image may only be used in connection with the press release "Quantum leap in the reliability of mass spectrometry-based proteomics," issued by Johannes Gutenberg University Mainz on October 25, 2016. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.