Laser Mass Spectrometry of Alkali-Earth Halides

Time of flight (TOF) mass spectrometry is one of the most important analyzing techniques which works based on acceleration and separation of ions in vacuum. The advantage of TOF instrument is that it can readily reach mass resolving power (m/m) of ۱۰۰۰–۱۰۰۰۰ with very high efficiency compared to other detection devices including magnetic sectors, quadrupole and ion traps. In this work, mass spectra of earth alkali halides including MgCl۲, CaCl۲, SrCl۲ and BaCl۲; and their mixtures have been recorded using a laser ionization technique and a home m ade TOF mass spectrometer. The spectra were assigned and the effects of the laser intensity and acceleration voltages on the spectra were investigated.

کلیدواژه ها:

Time-of flight ، Alkali-Earth Halides ، Isotope pattern ، Detection devices.