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:
May. 18, 1999
Filed:
Jun. 02, 1997
David E Clemmer, Bloomington, IN (US);
James P Reilly, Bloomington, IN (US);
Advanced Research & Techology Institute, Bloomington, IN (US);
Abstract
A hybrid ion mobility and time-of-flight mass spectrometer includes an ion source region coupled to an ion mobility spectrometer (IMS) which feeds directly into an ion accelerating region of a time-of-flight mass spectrometer (TOFMS). In one embodiment, the TOFMS is positioned relative to the IMS so that the flight tube axis of the TOFMS is perpendicular to the drift tube axis of the IMS. In an alternate embodiment, the TOFMS is positioned relative to the IMS so that the flight tube axis of the TOFMS is non-perpendicular to the drift tube axis of the IMS. In the alternate embodiment, a known quadrupole ion trap is positioned between the IMS and the TOFMS to provide the capability of controlling the injection of ion packets into the TOFMS. The ion source may be a MALDI source, an electrospray ionization source, or an ion trap positioned between the IMS and any known ion source. In each case, the IMS, TOFMS and ion sources are preferably controlled by a computer.