公开(公告)号：US07893402B2

公开(公告)日：2011-02-22

申请号：US12052267

申请日：2008-03-20

申请人： Ian Sanders ,  Gökhan Baykut ,  Jochen Franzen

发明人： Ian Sanders ,  Gökhan Baykut ,  Jochen Franzen

IPC分类号： B01D59/44

CPC分类号： H01J49/004 ,  G01N27/622

摘要： The mobility of mass-selected ions in gases is measured at pressures of a few hectopascal by selecting the ions under investigation in a quadrupole filter according to their mass-to-charge ratio m/z, measuring their mobility in a drift region at a pressure of a few hundred Pascal under the influence of a DC electric field and then filtering the measured ions by means of a quadrupole field in order to eliminate, or detect changes in, the mass-to-charge ratio. Several embodiments for the drift region are disclosed, in which the ions are kept in the axis of the drift region by RF fields. As these drift regions can also be utilized for a collision-induced decomposition of the ions, the device can additionally be used as a so-called triple quadrupole mass spectrometer.

摘要翻译： 质量选择的离子在气体中的迁移率通过在四极滤波器中根据其质荷比m / z选择正在研究的离子来测量几何百帕斯卡的压力，测量它们在压力下的漂移区域中的迁移率 在直流电场的影响下，几百帕斯卡，然后通过四极场过滤测量的离子，以消除或检测质荷比的变化。 公开了漂移区的几个实施例，其中通过RF场将离子保持在漂移区的轴上。 由于这些漂移区域也可以用于离子的碰撞诱导分解，因此该装置可另外用作所谓的三重四极杆质谱仪。

公开(公告)号：US20080251712A1

公开(公告)日：2008-10-16

申请号：US12052267

申请日：2008-03-20

申请人： Ian Sanders ,  Gokhan Baykut ,  Jochen Franzen

发明人： Ian Sanders ,  Gokhan Baykut ,  Jochen Franzen

IPC分类号： B01D59/44

CPC分类号： H01J49/004 ,  G01N27/622

摘要： The mobility of mass-selected ions in gases is measured at pressures of a few hectopascal by selecting the ions under investigation in a quadrupole filter according to their mass-to-charge ratio m/z, measuring their mobility in a drift region at a pressure of a few hundred Pascal under the influence of a DC electric field and then filtering the measured ions by means of a quadrupole field in order to eliminate, or detect changes in, the mass-to-charge ratio. Several embodiments for the drift region are disclosed, in which the ions are kept in the axis of the drift region by RF fields. As these drift regions can also be utilized for a collision-induced decomposition of the ions, the device can additionally be used as a so-called triple quadrupole mass spectrometer.

摘要翻译： 质量选择的离子在气体中的迁移率通过在四极滤波器中根据其质荷比m / z选择正在研究的离子来测量几何百帕斯卡的压力，测量它们在压力下的漂移区域中的迁移率 在直流电场的影响下，几百帕斯卡，然后通过四极场过滤测量的离子，以消除或检测质荷比的变化。 公开了漂移区的几个实施例，其中通过RF场将离子保持在漂移区的轴上。 由于这些漂移区域也可以用于离子的碰撞诱导分解，因此该装置可另外用作所谓的三重四极杆质谱仪。