| Quadrupole Mass Spectrometer |
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* Laboratory for Biomedical Analysis, Tokyo Medical and Dental University (1-5-45 Yushima, Bunkyo-ku, Tokyo 113, Japan) |
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| The quadrupole mass spectrometers (QMS) are well known and used in many fields of the world. The most of these instruments are used for GC/MS, which are simple and easy for operation by full-computerization. I feel that the most of QMS user does not know how to separate ions with different mass to charge ratio (m/z) by QMS. The mechanism of ion separation on QMS was not understood easier than that of magnetic sector mass spectrometer. I explain the basis of quadrupole mass spectrometer in this commentary. | ||
| Key words: Quadrupole mass spectrometer, Ion selection by quadrupole mass filter, Oscillation stability of quadrupole mass filter, Collision-induced dissociation, Quadrupole mass filter as collision cell | ||
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