GAS ANALYZER

摘要

A plurality of molecular components contained in a gas are to be ionized together at the same time by the PI method. For example, a plurality of molecular components contained in a gas generated at a certain instant are accurately analyzed in real-time based on the PI method. A gas analyzer includes a gas conveyor 4 that conveys a gas generated from a sample S in a sample chamber R0 to an analysis chamber R1, an ionizer 19 that ionizes the gas, a quadrupole filter 21 that separates ions for each mass-to-charge ratio, and an ion detector 22 that detects the separated ions. The ionizer 19 has an ionizing region provided near a gas outlet of the gas conveyor 4 and a lamp 33A that applies light to the ionizing region. Since the lamp 33A emits light having an light directivity lower than that of laser light and traveling in a spreading manner, the gas having entered the ionizing region in the ionizer 19 receives light irradiation in a wide range, and a plurality of gas components therein are ionized.