11. After ionization, the ions enter the atmospheric pressure interface of the mass spectrometer . 12. Mass spectrometers measure the molecular weights of peptides in a sample.13. Mass spectrometers are used for chemical analyses and to isolate and study proteins.14. Dr . Zahringer contributed much of the mass spectrometer technology from the MPI-Heidelberg. 15. Micromass makes mass spectrometers , another type of scientific instrument used in chemical analysis. 16. Others introduced mass spectrometers to gas chromatography in the late 1950s. 17. While conducting research at CERN, he invented the " missing mass spectrometer ". 18. The inlet tube to the mass spectrometer becomes the ion source. 19. Bruker makes mass spectrometers used for medical research, drug development and other applications. 20. In humans, peptides derived from translated uORFs were detected with a mass spectrometer .
