Mass spectrometer and reaction cell for ion-ion reactions

Details Mass spectrometer and reaction cell for ion-ion reactions Mass spectrometer and reaction cell for ion-ion reactions

2007-03-27

2007-03-27

Wells, Nikita (Department: 2881)

Radiant energy

Ionic separation or analysis

With sample supply means

C250S292000, C250S293000

Reexamination Certificate

active

11149952

ABSTRACT:
The invention relates to a reaction cell for reactions between different types of ion species and a related mass spectrometer to analyze the ion products. The invention consists in an RF-operated straight ion guide with a side inlet, particularly suitable for reactions between positive and negative ion species, one ion species being fed in through the side inlet. Particularly favorable is an ion guide made up of a set of coaxial apertured diaphragms with a slight axial potential gradient. The reactions can be used for a fragmentation of multiply charged protein or peptide ions by electron transfer, or for the removal of excess charges of multiply charged biopolymer ions, for example.

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