| 摘要 |
PROBLEM TO BE SOLVED: To provide an ion source for a quadrupole mass spectrometer wherein ion generation efficiency is improved to improve sensitivity of the quadrupole mass spectrometer. SOLUTION: In this ion source for the quadrupole mass spectrometer provided with an ion source, a mass separation part and an ion detector and constituted for injecting ions generated by the ion source into the mass separation part, separating them by a ratio of mass and charge, and detecting the target ion by an ion detector, an ionization chamber auxiliary electrode optimizing potential distribution in an ionization chamber is provided between the ionization chamber and an ion extraction electrode contained in the ion source. COPYRIGHT: (C)2007,JPO&INPIT
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