The Orbitrap: a new mass spectrometer Hu, Qizhi ; Noll, Robert J. ; Li, Hongyan ; Makarov, Alexander ; Hardman, Mark ; Graham Cooks, R. Abstract Publication: Journal of Mass Spectrometry Pub Date: April 2005 DOI: 10.1002/jms.856 Bibcode: 2005JMSp...40..430H