Patent · US Active

Multiple ion injection in mass spectrometry

US8686350B2 · kind B2 · utility

3Cited by

12References

8Claims

0Family size

Assignee

THERMO FINNIGAN LLC · US

Inventors

Alexander A. Makarov · Bremen, DE
Oliver Lange · Bremen, DE
Stevan R. Horning · Delmenhorst, DE

Key dates

Filing date	Mar 29, 2013
Grant date	Apr 1, 2014
Priority date	—
Expiry date	Mar 29, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH01J49/4265
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

This invention relates to mass spectrometry that includes ion trapping in at least one of the stages of mass analysis. In particular, although not exclusively, this invention relates to tandem mass spectrometry where precursor ions and fragment ions are analyzed. A method of mass spectrometry is provided comprising the sequential steps of: accumulating in an ion store a sample of one type of ions to be analyzed; accumulating in the ion store a sample of another type of ions to be analyzed; and mass analyzing the combined samples of the ions; wherein the method comprises accumulating the sample of the one type of ions and/or the sample of another type of ions to achieve a target number of ions based on the results of a previous measurement of the respective type of ions.

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