Patent ID: 9741548
Date: 2017-08-22
CPC Classifications: G01N,H01J

Claim:
1. A mass spectrometer, comprising: an ionization chamber where a sample is ionized, and a mass spectrometry unit into which ions are introduced from the ionization chamber, wherein said ionization chamber has a housing that provides a space inside the housing, a probe having a sample to be measured flow path in order to spray a sample to be measured into the inside of said ionization chamber is attached to said housing, and an ion introducing tube is created in said housing so that the inside of said ionization chamber and the inside of the mass spectrometry unit communicate, a mass spectrum value that is gained by measuring a sample to be measured is calibrated using a mass spectrum value that is gained by measuring the standard sample, and the mass spectrometer further comprises a standard sample flow path that sprays the standard sample into the inside of said ionization chamber, and a pulse valve that is arranged in a standard sample flow path so as to introduce the standard sample intermittently, and said standard sample flow path has a nozzle arranged in such a manner that said standard sample is sprayed between the spraying nozzle of said sample to be measured flow path and said ion introducing tube with respect to a blowing direction of the sample to be measured that has been sprayed from the spraying nozzle.