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:
Mar. 05, 2019
Filed:
Feb. 24, 2016
Universität Innsbruck, Innsbruck, AT;
Martin Breitenlechner, Wörgl, AT;
Armin Hansel, Innsbruck, AT;
Universität Innsbruck, Innsbruck, AT;
Abstract
A method and apparatus for chemical ionization of analyte gas particles in a carrier gas by introducing primary ions, characterized in that the primary and product ions are accelerated by a rotating electric field orthogonal to that direction () in which the ions are transported towards the exit () of the reaction volume (). This can, for example, reduce unwanted cluster formation without increasing the transport speed of the ions through the reaction chamber, which improves, for example, the product ion yield. The apparatus of the invention achieves this by means of N≥3 rod electrodes () to which N AC voltages U(t), . . . , U(t) with N different phase positions ascending in one sense of rotation φ, . . . , φare applied.