The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 1999
Filed:
Feb. 27, 1998
Applicant:
Inventors:
Jochen Franzen, Bremen, DE;
Michael Schubert, Bremen, DE;
Assignee:
Bruker Daltonik GmbH, Bremen 33, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
250282 ;
Abstract
The invention consists of deriving the control of the space charge in the ion trap for the initial daughter ion spectrum from the filling rates of previous normal spectra, from the abundance ratio of the parent ions to be isolated to the total ions in the spectrum, and from the at least roughly known isolation and fragmentation yields. For further daughter ion spectra, the resulting measured overall filling rate with daughter ions may be used. The same applies in an analogue way to spectra of isolated ions or of ions from MS.sup.n processes.