Switchable ion guide

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United States of America Patent

PATENT NO 11862450
APP PUB NO 20220216044A1
SERIAL NO

17612092

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An ion optical arrangement (1) for use in a mass spectrometer comprises a collision cell defining an ion optical axis along which ions may pass, electrodes comprising a set of parallel poles (11A, 11B, 11C) arranged in the collision cell, and a voltage source for providing voltages to the electrodes to produce electric fields. The ion optical arrangement is arranged for switching between a first operation mode in which the collision cell is pressurized and a second operation mode in which the collision cell is substantially evacuated. The ion optical arrangement is further arranged for producing a radio frequency electric focusing field in the first operation mode and a static electric focusing field in the second operation mode.

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Patent Owner(s)

Patent OwnerAddress
THERMO FISHER SCIENTIFIC (BREMEN) GMBHHANNA-KUNATH-STR 11 BREMEN 28199

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jung, Gerhard Delmenhorst, DE 36 312
Schwieters, Johannes Ganderkesee, DE 58 164
Wehrs, Henning Bremen, DE 13 8

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