Patent · US Active

Mass spectrometry

US7728288B2 · kind B2 · utility

13Cited by

0References

25Claims

0Family size

Assignee

THERMO FINNIGAN LLC · US

Inventors

Alexander A. Makarov · Bremen, DE
Eduard V. Denisov · Bremen, DE
Gerhard Jung · Delmenhorst, DE
Alexander Kholomeev · Bremen, DE
Oliver Lange · Bremen, DE

Key dates

Filing date	Mar 29, 2006
Grant date	Jun 1, 2010
Priority date	—
Expiry date	Aug 24, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH01J49/04
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

This invention relates to a mass spectrometer including a reaction cell and to a method of using such a mass spectrometer. In particular, although not exclusively, this invention relates to a tandem mass spectrometer and to tandem mass spectrometry. The invention provides a method of mass spectrometry using a mass spectrometer having a longitudinal axis, comprising guiding ions to travel along the longitudinal axis of the mass spectrometer in a forwards direction to pass through an intermediate ion store and then to enter a reaction cell, to process the ions within the reaction cell, to eject the processed ions to travel back along the longitudinal axis to enter the intermediate ion store once more, and to eject one or more pulses of the processed ions in an off-axis direction to a mass analyser.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.