Electrospray ionization interface to high pressure mass spectrometry and related methods
摘要
說明書
The interface developed for mass spectrometer has several advantages over conventional ESI-MS interfaces. mass spectrometer minimizes the complexity of the atmospheric interface. Traditional ESI-MS interfaces consist of an atmospheric inlet, multiple regions of differential pressure, and complex ion optics—required due to the low-pressure operation of the mass analyzer. Because mass spectrometer operates with pressures close to 1 Torr, the interface used introduced ions directly from atmosphere into the mass analyzer chamber via a capillary inlet. A simple fitting was used to hold the capillary, so the inlet was easily removable for cleaning. Finally, minimal optics were required to maximize ion transmission due to a shorter ion-source-to-mass-analyzer distance.
