| 摘要 |
A mass spectrometer comprises a source for generating ions, a means for separating the ions according to mass, and means for detecting the separated ions. The mass spectrometer is characterized by that means for separating ions comprises a sector type homogenous magnetic field, and that the magnetic field has a deflection angle ranging from 110 to 135 degrees, and incident and exit angles ranging from 40 to 60 degrees.
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