Isolating ions in quadrupole ion traps for mass spectrometry

Details Isolating ions in quadrupole ion traps for mass spectrometry Isolating ions in quadrupole ion traps for mass spectrometry

H - Electricity

01

J

H01J 49/42 (2006.01)

Patent

CA 2575393

Ions in a predefined narrow mass to charge ratio range are isolated in an ion trap by adjusting the field and using ejection frequency waveform(s). Thus the mass-to-charge ratio isolation window is controlled and has an improved resolution without increasing the number of frequency components.

L'invention concerne des ions dans une plage de rapport masse/charge étroite prédéfinie, qui sont isolés dans un piège à ions par réglage du champs et utilisation de forme(s) d'onde de fréquence d'éjection. Ainsi, la fenêtre d'isolation du rapport masse/charge est régulée et présente une meilleure résolution sans augmentation du nombre de composantes de fréquence.

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