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:
Dec. 10, 2013
Filed:
Feb. 21, 2013
Bruker Daltonik Gmbh, Bremen, DE;
Ralf Hartmer, Hamburg, DE;
Bruker Daltonik GmbH, Bremen, DE;
Abstract
Radical anions for use in the fragmentation of positively charged biopolymer ions by means of electron transfer are produced from substances previously unknown for use as ETD production substances. The inventive substances produce radical anions that lead to electron transfer dissociations with a high yield of fragment ions. The substances have high volatility that allows them to be kept in unheated containers outside the vacuum system and transported into the vacuum system to an in vacuum electron attachment ion source via unheated lines and low molecular weights that allow the measurement of even very light fragment ions. In one embodiment, a suitable substance is 1-3-5-7-cyclooctatetraene.