Particulate ion trap mass spectrometer with low-temperature charge detector

摘要: The invention discloses a particulate ion trap mass spectrometer with low-temperature charge detector. comprises an analyzer, laser-induced acoustic desorption ionization source and the detector, wherein each of upper-end lower-end electrodes is axially provided through hole a; b formed in center annular electrode; detector arranged at lower part insulating ceramic ring between analyzer detector; electromagnetic shield on surface c position, corresponding to position holes a, shield; sample target laser. further liquid nitrogen cooling device, device closed cavity, cavity communicated inlet pipe outlet pipe; contact match According spectrometer, due adoption flow velocity control temperature can be adjusted, so that flexible noise level realized.