Patent ID: 9281169
Filing Date: 2016-03-08
CPC Classification: H01J

Claim Text:
1. A mass spectrometer comprising: a mass spectrometry section that separates an ionized sample gas; an ion source that has an internal pressure thereof reduced by differential pumping from the mass spectrometry section and ionizes the sample gas; a sample container in which a measurement sample is placed and the sample gas is generated by vaporizing the measurement sample; a thin pipe that introduces the sample gas generated in the sample container into the ion source; an elastic tube that is openable and closable, that connects the sample container and the thin pipe; at least one weir that closes or opens the elastic tube by pinching or releasing the elastic tube; and a cartridge that integrates the sample container, the thin pipe, and the elastic tube, and is detachable in a lump from a main body of the mass spectrometer.