Atmospheric pressure ionization mass spectrometer
AssigneeHitachi, Ltd.
InventorsTadao Mimura, Yoshiaki Kato
Life of this patent
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Abstract
An atmospheric pressure ionization mass spectrometer has an interface by which the mass spectrometer is coupled on-line to a liquid chromatograph. This interface comprises an atomization unit which heats and atomizes a sample carried out by a mobile phase from the liquid chromatograph. The atomization unit includes a sample introducing pipe having therein a plurality of thin passages which extend along an axis of the pipe and into which the sample is introduced for atomization.
Claims8
An atmospheric pressure ionization mass spectrometer, comprising:
- an atomization section for heating and atomizing a sample carried by a mobile phase;
- an ionization section for ionizing the atomized sample;
- and
- a mass spectrometric analysis section for determining a mass of the ionized sample;
- and
- said atomization section including a sample introducing pipe means provided therein with a plurality of thin holes for introduction of the sample for atomization, said thin holes extending along an axis of said sample introducing pipe means.
An atmospheric pressure ionization mass spectrometer coupled on-line to a liquid chromatograph, including means for heating and atomizing a mobile phase and a sample which flow out of the liquid chromatograph, and said heating and atomizing means has a plurality of passages which are disposed such that they ensure uniform transfer of heat to the mobile phase and the sample and into which the mobile phase and the sample are introduced.
Dependencies are inferred from the claim text.