Tandem time of flight mass spectrometer and method of use

In turn to provide comprehensive (i.e. fast and keen) MS-MS switch, the inventor used by the time nested separator of two flight time (TOF) mass analyzer by. The Lizi cover (1) to 100eV) and rising speed and a long TOF1 is separated from the lower ion the work; the fragment ns the working is higher than the clamped keV energies fast and short TOF2 and analyzing quality. Split feeble-minded unit is TOF1 and TOF2 is) is mainly composed of reducing unit and a pneumatic high voltage, accelerates to be the damping. Wherein the separation of TOF1 requires a millisecond time, analyses of the TOF2 the lower microsecond, therefore the invention provides is carried out comprehensive MS-MS analyses of multiple precursor ns of each single pulse ion. By a novel TOF1 analyzer, the separation installed in TOF1 wherein the. TOF-TOF a substrate by static TOF1, here, wheel sieve of the cylindrical and multiple separators are received ion focusing lens with the spiratron described static TOF1 related. And the novel mixed TOF1 analyzer, a combined radiofrequency and two OUTPUT fields, can prevent ingress a better performance. The RF field of the feeble-minded ion the TOF1 analyzer, two of DC fields improve the resolution through the compensation relatively large energy connecting.