Patent · US Active

Multiple ion injection in mass spectrometry

US7880136B2 · kind B2 · utility

17Cited by

13References

38Claims

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	May 31, 2006
Grant date	Feb 1, 2011
Priority date	—
Expiry date	Oct 21, 2027

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 analysed. 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 analysed; accumulating in the ion store a sample of another type of ions to be analysed; and mass analysing 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.