APPLICATIONS OF HYDROGEN GAS GETTERS IN MASS SPECTROMETRY

摘要

The present invention is an electrically controlled gettered pump assembly to entrain and fully release hydrogen gas to regulate the pressure and buffer the ions in an ion trap mass spectrometer and other portable analytical instruments. In addition to the gettered pump assembly, the present invention also incorporates a microvalve between the different chambers to release and control the hydrogen content. Hydrogen gas regulates the pressure in mass spectrometers and also acts as a buffering gas to prevent the ions from escaping the trap.