ENERGY VARIABLE TYPE PHOTOIONIZATION DEVICE AND MASS SPECTROMETRY

摘要

PROBLEM TO BE SOLVED: To provide a mass spectrometry using an energy variable type photoionization device (12) for ionizing and/or cleaving molecules.

SOLUTION: This photoionization device cleaves molecular in a controlled mode by cutting off specific molecular binding, or selects an ionization photon wavelength from a range of a wavelength in which ionization photon energy can be adjusted in order to ionize a molecular without accompanying excessive fragmentation. The wavelength selection can be performed by selecting plasma formation gas (34) to be combined with the windowless emission of an ionization photon (38) from a plasma chamber. Also a mass spectrometry using the selected ionization photon wavelength is disclosed.

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