Molecular Beam Mass Spectrometry (MBMS) is an analytical technique for determining the molecular weight of molecules sampled from a reactive environment. Gases are probed in-situ and the sample is expanded into a molecular beam. Thus chemical reactions are quenched immediately and the sample composition is "frozen". Even highly reactive species, such as radicals, are preserved by this sampling technique and are thus detectable. The subsequent mass spectrometric analysis allows for the separation of species by their individual molecular weight.
The combination of molecular beam sampling with a time of flight mass spectrometer (TOF) provides multiple advantages:
The group operates two mass spectrometers with different focus: