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:
Aug. 20, 2013
Filed:
Nov. 22, 2010
David E. Clemmer, Bloomington, IN (US);
Ruwan T. Kurulugama, Richland, WA (US);
Fabiane M. Nachtigall, Machado, BR;
Zachary Henson, Santa Barbara, CA (US);
Samuel I. Merenbloom, Richmond, CA (US);
Stephen J. Valentine, Bloomington, IN (US);
David E. Clemmer, Bloomington, IN (US);
Ruwan T. Kurulugama, Richland, WA (US);
Fabiane M. Nachtigall, Machado, BR;
Zachary Henson, Santa Barbara, CA (US);
Samuel I. Merenbloom, Richmond, CA (US);
Stephen J. Valentine, Bloomington, IN (US);
Indiana University Reseach and Technology Corporation, Indianapolis, IN (US);
Abstract
An ion mobility spectrometer instrument has a drift tube that is partitioned into a plurality of cascaded drift tube segments. A number of electric field activation sources may each be coupled to one or more of the plurality of drift tube segments. A control circuit is configured to control operation of the number of electric field activation sources in a manner that sequentially applies electric fields to the drift tube segments to allow only ions having a predefined ion mobility or range of ion mobilities to travel through the drift tube. The drift tube segments may define a linear drift tube or a closed drift tube with a continuous ion travel path. Techniques are disclosed for operating the ion mobility spectrometer to produce highly resolved ion mobility spectra.