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.

Date of Patent:
Mar. 19, 2013

Filed:

May. 25, 2011
Applicants:

Melvin Andrew Park, Billerica, MA (US);

Desmond Allen Kaplan, Billerica, MA (US);

Mark Ridgeway, Bremen, DE;

Gary L. Glish, Chapel Hill, NC (US);

Inventors:

Melvin Andrew Park, Billerica, MA (US);

Desmond Allen Kaplan, Billerica, MA (US);

Mark Ridgeway, Bremen, DE;

Gary L. Glish, Chapel Hill, NC (US);

Assignees:

Bruker Daltonics, Inc., Billerica, MA (US);

The University of North Carolina at Chapel Hill, Chapel Hill, NC (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 3/14 (2006.01); B01D 59/44 (2006.01);
U.S. Cl.
CPC ...
Abstract

Analyte ions are analyzed first by field asymmetric ion mobility spectrometry (FAIMS) before being analyzed by a mass analyzer. Analyte ions are produced at near atmospheric pressure and transferred via a dielectric capillary into the vacuum system of the mass analyzer. While passing through the capillary, the ions are analyzed by FAIMS via electrodes on the interior wall of the capillary. Improved ion transmission is achieved by providing smooth geometric transitions between the channel in FAIMS analyzer and the channel in the remainder of the capillary.


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