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. 18, 1992
Filed:
Dec. 12, 1990
Martin Allemann, Hinwil, CH;
Pablo Caravatti, Winterthur, CH;
Spectrospin AG, , CH;
Abstract
An ICR ion trap comprises electrically conductive side plates (1) extending in parallel to one axis (Z), and electrically conductive end plates (5,6) extending perpendicularly to the said axis (Z). Additional electrode plates (8,9) are arranged at a certain spacing from the said end plates (5,6) and can be supplied with trapping potentials of a polarity opposite to the polarity of the potentials applied to the said end plates so that an outer space is defined in which electrodes of opposite sign are trapped. Following analysis and elimination of the ions contained in the inner space, the ions of opposite sign can be trapped in the inner space for subsequent analysis. The arrangement provides also the possibility to observe recombination reactions between ions of different signs.