Patent ID: 11874257
Assignee: SHIMADZU CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 10:
11. A mass spectrometry method that is performed by a mass spectrometry device comprising a vacuum container in which an ionizer that ionizes a sample separated in a separator and produces ions, a mass separator that performs mass separation on the ions produced in the ionizer and a detector that detects ions obtained by mass separation in the mass separator are arranged,
the mass spectrometry device comprising an opening-closing portion that is provided at the vacuum container, and
the mass spectrometry method including:
introducing a cooling gas for cooling the ionizer into the vacuum container;
determining whether cooling of the ionizer is finished after the cooling gas is introduced into the vacuum container; and
switching the opening-closing portion from a locked state of being locked in a close state to an unlocked state in a case where a result of determination represents that cooling is finished.