Mass spectrometer

Abstract

The present invention provides a mass spectrometer includes a sample introduction part, an ionization part connected to the sample introduction part and configured to ionize the sample introduced from the sample introduction part, an ion lens part including an extraction lens structure adjacent to the ionization part and first and second guiding lenses configured to guide an ion beam extracted from the extraction lens structure, and a detection part configured to detect the ion beam, wherein a central axis of the extraction lens structure is a first axis extending in a first direction, a central axis of the first guiding lens is a second axis spaced a first distance from the first axis, and a central axis of the second guiding lens is a third axis spaced a second distance from the second axis.

Dependencies are inferred from the claim text.