公开(公告)号：US20150041637A1

公开(公告)日：2015-02-12

申请号：US14492468

申请日：2014-09-22

Applicant: Indiana University Research and Technology Corporation

Inventor： David Edward Clemmer ,  Michael A. Ewing ,  Steven M. Zucker ,  Christopher R. P. Conant

IPC: H01J49/00 ,  H01J49/26 ,  G01N27/62

CPC classification number: G01N27/622 ,  H01J49/0031 ,  H01J49/26

Abstract: In a drift tube partitioned into a plurality of cascaded drift tube segments each followed by an ion elimination region, for any integer M greater than 1, a method of separating ions repeats the following multiple times to cause only ions entering the drift tube that have a predefined ion mobility or range to traverse the drift tube: for each integer N beginning with 1 and sequentially advancing to M, establishing for a time duration an Nth electric repulsive field in the Nth ion elimination region and in every following Mth ion elimination region and an Nth electric drift field in each remaining ion elimination region and in each drift tube segment while deactivating for the time duration all non-Nth electric drift fields and non-Nth electric repulsive fields in each of the ion elimination regions and drift tube segments.

Abstract translation: 在分隔成多个级联漂移管段的漂移管中，每个后续是离子消除区，对于大于1的任何整数M，分离离子的方法重复以下多次，以使仅有离子进入漂移管具有 预定的离子迁移率或穿越漂移管的范围：对于从1开始并顺序前进到M的每个整数N，建立第N个离子消除区域和每个后续的第M个离子消除区域中的第N个电排斥场的持续时间，以及 在每个剩余的离子消除区域和每个漂移管段中的第N个电漂移场，同时在每个离子消除区域和漂移管段中去除所有非第N个电漂移场和非第N个电排斥场的持续时间。