Simultaneous Measurement of 5 Anesthetic and 3 Respiratory Gases with Quadrupole Mass Spectrometer and Simple Technique of Calibration
In Japan, 4 anesthetic agents (halothane, enflurane, isoflurane, sevoflurane) have been used clinically since 1990 (ex. Fig 1). We have not been able to buy such a multiple gas monitor measuring 4 agents1) identically. Therefore, we tried to tune up a quadrupole mass spectrometer (MGA-2000SP, Airspec, U.K.) to be able to measure the 4 agents, nitrous oxide and 3 respiratory gases. According to standardizing the parameter settings of this mass spectrometer, its routine use has become available in clinical anesthesia and for the research after 1990 in our department (Fig 1,2,3). We would like to report the performances of this machine with our developed setting up methods and a suitable technique for easy to calibrate.
KeywordsAnesthetic Agent Quadrupole Mass Spectrometer Error Error Anesthetic Vapor Error Error Error
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