Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tetsuya Nishida0
Hiroyuki Yasuda0
Shinji Nagai0
Date of Patent
June 3, 2008
Patent Application Number
11508323
Date Filed
August 23, 2006
Patent Primary Examiner
Patent abstract
An ion resonance condition is corrected accurately in an ion trapping device. Measurements are repeated by alternately applying and not applying a resonance frequency voltage while spectral data is obtained continuously. Data obtained in the absence of the resonance frequency voltage is used as reference data to correct the set data of a resonance condition. As a result, calibration can be made while taking into consideration the variations in the amount of ions that are introduced into the ion trap.
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