发明名称 |
Controlling ion flux into time-of-flight mass spectrometers |
摘要 |
A time-of-flight mass spectrometer (TOF MS) includes an ion gate, an ion guide downstream of the ion gate, and a TOF analyzer downstream of the ion guide. The TOF MS is operated with an adjustable duty cycle to limit the amount of ions entering a TOF analyzer and avoid saturating a detector system of the TOF MS. The duty cycle is adjusted by controlling the ion gate. The ion guide emits ions as a continuous beam, without trapping the ions. The ion guide may be operated as a collision cell. The TOF MS may also include a mass filter upstream of the ion guide. |
申请公布号 |
US8624181(B1) |
申请公布日期 |
2014.01.07 |
申请号 |
US201313840898 |
申请日期 |
2013.03.15 |
申请人 |
AGILENT TECHNOLOGIES, INC. |
发明人 |
NEWTON KENNETH |
分类号 |
H01J49/40;B01D59/44;H01J49/26 |
主分类号 |
H01J49/40 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|