发明名称 |
Mass Spectrometer |
摘要 |
A mass spectrometer is disclosed comprising a time of flight mass analyser. The time of flight mass analyser comprises an ion guide comprising a plurality of electrodes which are interconnected by a series of resistors forming a potential divider. Ions are confined radially within the ion guide by the application of a two-phase RF voltage to the electrodes. A single phase additional RF voltage is applied across the potential divider so that an inhomogeneous pseudo-potential force is maintained along the length of the ion guide. |
申请公布号 |
US2015170896(A1) |
申请公布日期 |
2015.06.18 |
申请号 |
US201514631959 |
申请日期 |
2015.02.26 |
申请人 |
Micromass UK Limited |
发明人 |
Green Martin Raymond;Wildgoose Jason Lee |
分类号 |
H01J49/40;H01J49/00;H01J49/06 |
主分类号 |
H01J49/40 |
代理机构 |
|
代理人 |
|
主权项 |
1. A mass spectrometer comprising:
a collision gas cell comprising an ion guide, wherein said ion guide comprises a plurality of electrodes; and one or more voltage supplies arranged and adapted to confine ions radially within said ion guide; wherein an axial pseudo-potential ramp is formed, created or maintained along at least a portion of the axial length of said ion guide to propel, force or urge ions along the length of the ion guide. |
地址 |
Manchester GB |