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Quadrupole Mass Spectrometer with Enhanced Sensitivity and Mass Resolving Power
Quadrupole Mass Spectrometer with Enhanced Sensitivity and Mass Resolving Power
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机译:具有增强的灵敏度和质谱分离能力的四极质谱仪
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摘要
A novel method and mass spectrometer apparatus is introduced to spatially and temporally resolve images of one or more ion exit patterns of a multipole instrument. In particular, the methods and structures of the present invention measures the ion current as a function of time and spatial displacement in the beam cross-section of a quadrupole mass filter via an arrayed detector. The linearity of the detected quadrupole ion current in combination with it reproducible spatial-temporal structure enables the deconvolution of the contributions of signals from individual ion species in complex mixtures where both sensitivity and mass resolving power are essential.
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