Ionization chamber

摘要

An ionization chamber 100 is provided between a liquid chromatograph unit 60 and a mass spectrometer 50, and is formed of: an atomization means 15; and an ion introducing pipe 19 of which the entrance portion is created within the ionization chamber 100 in the horizontal direction that is perpendicular to the Z direction and of which the exit portion is created within the mass spectrometer unit 50. A liquid sample that has been fed from the liquid chromatograph unit 60 is sprayed in the Z direction by the atomization means 15 while being ionized within the ionization chamber 100, wherein the entrance portion has an opening in such a form that corresponds to the spread in the XY plane of the liquid sample sprayed in the Z direction. The sprayed liquid sample is then fed into the mass spectrometer unit 50 while being desolvated, which effectively contributes to analysis.

主权项

1. An ionization chamber provided between a liquid chromatograph unit and a mass spectrometer, comprising:
an atomization means for spraying a liquid sample that has been fed from said liquid chromatograph unit in the Z direction in said ionization chamber while ionizing the liquid sample; and an ion introducing pipe of which an entrance portion is created within said ionization chamber in the horizontal direction that is perpendicular to the Z direction and of which an exit portion is created so as to introduce ions into said mass spectrometer unit, characterized in that an opening in said entrance portion has such a form as to correspond to the spread in the XY plane of the liquid sample sprayed in the Z direction.