Patent ID: 11915919
Assignee: SHIMADZU CORPORATION
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A mass spectrometer comprising:
a first spray unit that sprays a first sample into a first space;
a second spray unit that sprays a second sample into the first space or a second space communicating with the first space;
a determination unit that determines whether or not the second sample is sprayed from the second spray unit;
a gas supply unit that supplies gas that prevents the second sample sprayed into the first space or an ion derived from the second sample from reaching the first spray unit; and
a control unit that controls supply of the gas from the gas supply unit,
wherein the control unit starts the supply of the gas from the gas supply unit into the first space in a case where the determination unit determines that the second sample is sprayed from the second spray unit.