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:
Feb. 04, 2003
Filed:
Mar. 15, 2000
Gökhan Baykut, Bremen, DE;
Bruker Daltonik GmbH, Bremen, DE;
Abstract
A matrix assisted laser desorption ionization (MALDI) source with the capability of exposing the sample to a local gas pulse exactly at the point where the laser desorption process occurs, helps reduce the excess kinetic energy of the generated ions. Thus, it allows a better control of the ions during their transfer to and capture in ion trap mass spectrometers. Avoiding the unnecessary pressure increase, the MALDI source helps reduce pump-off times and the performance decrease particularly in Fourier transformation ion cyclotron resonance mass spectrometers. In addition, it allows the use of pulsed reactive gases in connection with direct or matrix assisted laser desorption, which can lead to the formation of novel product ions. The MALDI source also provides the capability of capturing and accumulating the ions in an in-source multipole ion guide for increasing the sensitivity of the method.