FOURIER TRANSFORM ION CYCLOTRON RESONANCE MASS SPECTROMETER AND METHOD FOR CONCENTRATING IONS FOR FOURIER TRANSFORM ION CYCLOTRON RESONANCE MASS SPECTROMETRY

摘要

Fourier transform ion cyclotron resonance mass spectrometry (Fourier Transform Ion Cyclotron Resonance Mass Spectrometer; FT-ICR MS) is , the ionization source for generating ions; The ionized ions are dispersed over the space created by the source is incident , a reduction lens for reducing the distance between the ion by the deceleration of the incident ion and optionally ; And may include an ion cyclotron resonance cell to which the ions are incident through the deceleration lens . Using a deceleration lens inhibit the spread according to the mass of the ions , and can be expanded to mass measurement area can be measured at a time, to focus the ions , the ions can also be effectively incident on the ICR cell , so improving the measurement sensitivity .