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Why q-tof mass spectrometry has 8 channels?
The reason is that the q-tof mass spectrometer consists of ion source, ion optics, quadrupole, collision cell, ion beam shaper, tof mass analyzer and ion detector.

The Q-tof mass spectrometer ESIJetStreamESI using AgilentJetStream technology uses sheath nitrogen to limit electrospray. The ion density and desolvation are improved, the signal intensity of mass spectrometry is improved, and the noise is reduced. At the optimum LC flow rate, the sensitivity of MS and MS/MS can be improved by 5 to 10 times by AgilentJetStream technology.