公开(公告)号：US06541769B1

公开(公告)日：2003-04-01

申请号：US09660359

申请日：2000-09-12

申请人： Yasuaki Takada ,  Yasushi Terui ,  Kiyomi Yoshinari ,  Takayuki Nabeshima ,  Minoru Sakairi

发明人： Yasuaki Takada ,  Yasushi Terui ,  Kiyomi Yoshinari ,  Takayuki Nabeshima ,  Minoru Sakairi

IPC分类号： B01D5944

CPC分类号： H01J49/424 ,  H01J49/061

摘要： An ion-deflecting device is located between a mass spectrometer and a detector, and undesired signal sources are prevented from reaching the detector during the ion-trapping period by switching the voltage applied to the detector between the ion-trapping period and the mass-analyzing period. A first voltage is applied to the detector during an ion-trapping period while a second voltage is applied to the detector during a mass-analyzing period. An ion-deflecting device deflects ions such that they do not reach the detector during an ion-trapping period while they do reach the detector during a mass-analyzing period. This way, the life of the detector is increased.

摘要翻译： 离子偏转装置位于质谱仪和检测器之间，并且在离子捕获期间通过切换在离子捕获期和质量分析之间施加到检测器的电压来防止不期望的信号源到达检测器 期。 在离子捕获期间将第一电压施加到检测器，同时在质量分析期间将第二电压施加到检测器。 离子偏转装置使离子偏转，使得它们在离子捕获期间不会在质量分析期间到达检测器时到达检测器。 这样，检测器的寿命就会增加。