US 2026/0269207 A1 · MASS SPECTROMETER AND METHOD

Abstract

A charge detection mass spectrometer (CDMS) is provided. The CDMS includes an electrostatic sector field ion trap and an inductive charge detector. The electrostatic sector field ion trap includes a set of electrostatic sectors including a first electrostatic sector and a second electrostatic sector spaced apart to define a field-free region along an ion path. The inductive charge detector is positioned within the field-free region such that ions traveling along the ion path pass through the inductive charge detector. The electrostatic sector field ion trap is configured to guide ions along the ion path through the inductive charge detector. Ions are maintained at a substantially constant speed while traversing the ion path, enabling charge detection during repeated passages through the field-free region. A method of determining masses of ions using a charge detection mass spectrometer is also provided.

Claims20

Dependent claims

A charge detection mass spectrometer (CDMS) comprising:

an electrostatic sector field ion trap and an inductive charge detector, wherein the electrostatic sector field ion trap comprises a set of electrostatic sectors including a first electrostatic sector and a second electrostatic sector, wherein the first electrostatic sector and the second electrostatic sector are spaced apart by a field-free region traversed by an ion path, wherein the inductive charge detector is disposed in the field-free region, and wherein the electrostatic sector field ion trap is configured to define, at least in part, the ion path via the inductive charge detector;
and
wherein the electrostatic sector field ion trap is configured such that an ion moves with a substantially constant speed around the ion path.

Dependencies are inferred from the claim text.

Mass spectrometer and method

Life of this patent

Mass spectrometer and method

Life of this patent

Abstract

Claims20