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

Claim 0:
1. 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, and
the mass spectrometry device comprising:
an opening-closing portion that is provided at the vacuum container and switches between a locked state of being locked in a close state and an unlocked state by a difference in pressure between inside and outside of the vacuum container; and
a cooling gas introducer that introduces a cooling gas for cooling the ionizer into the vacuum container such that the opening-closing portion is kept in the locked state.