SEARCH Articles Figures Tables Linear trap quadrupole mass spectrometer Linear-trap quadrupole Linear-trap quadrupole Orbitrap mass Linear-trap quadrupole Orbitrap mass spectrometer Mass quadrupole Mass trapping Mass-Analyzing Linear Quadrupole Ion Trap with Axial Ejection Quadrupole linear Quadrupole linear ion trap mass Quadrupole linear ion trap mass spectrometers Quadrupole trap Quadrupole-linear ion trap mass spectrometry Trapping quadrupole Triple quadrupole-linear ion trap mass spectrometry