Patent Number: 6,512,224

Title: Longitudinal field driven field asymmetric ion mobility filter and detection system

Abstract: An asymmetric field ion mobility spectrometer with an ionization source for ionizing a sample media and creating ions. An ion filter is disposed in the analytical gap downstream from the ionization source for creating an asymmetric electric field to filter the ions. An ion flow generator for creating an electric field in a direction transverse to the asymmetric electric field and which propels the ions through the asymmetric electric field towards a detector.

Inventors: Miller; Raanan A. (Cambridge, MA), Zahn; Markus (Lexington, MA)

Assignee: The Charles Stark Draper Laboratory, Inc.

International Classification: G01N 27/64 (20060101); H01J 49/42 (20060101); H01J 49/34 (20060101); B01D 059/44 (); H01J 049/00 ()

Expiration Date: 01/28/2020