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:
Apr. 05, 2016
Filed:
Feb. 05, 2015
Applicant:
Bruker Daltonik Gmbh, Bremen, DE;
Inventors:
Melvin Andrew Park, Billerica, MA (US);
Oliver Räther, Lilienthal, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/26 (2006.01); H01J 49/36 (2006.01); G01N 27/62 (2006.01); H01J 49/42 (2006.01);
U.S. Cl.
CPC ...
G01N 27/624 (2013.01); H01J 49/36 (2013.01); H01J 49/4225 (2013.01);
Abstract
The invention provides a trapping ion mobility analyzer and methods for operating the ion mobility analyzer. The trapping ion mobility analyzer comprises an RF field for radially confining ions along an axis, a region with an axial electric DC field and a gas flow along the axis counteracting the electric DC field in the region, wherein the region either comprises a rising edge with an increasing axial electric DC field or a falling edge with a decreasing axial electric DC field and wherein the slope of the electric field strength along the axis is not constant at a substantial portion of the edge.