发明名称 |
Apparatus and method for a multi-stage ion transfer tube assembly for use with mass spectrometry |
摘要 |
An apparatus and method for introducing ions into a vacuum chamber of a mass spectrometer includes producing ions in an ionization chamber of an ion source. The ions are sampled into an intermediate pressure chamber via a first ion transfer tube. In particular, the pressure within the intermediate pressure chamber is maintained at a value that exceeds a maximum pressure for being sampled into the vacuum chamber of the mass spectrometer. Some of the ions are sampled from the intermediate pressure chamber via at least a second ion transfer tube, the at least a second ion transfer tube having an outlet end that is in communication with a low-pressure chamber. In particular, the pressure within the low-pressure chamber is maintained at a value that is less than a maximum pressure for being sampled into the vacuum chamber of the mass spectrometer. Some of the ions are sampled from the low-pressure chamber into the vacuum chamber of the mass spectrometer.
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申请公布号 |
US2008116370(A1) |
申请公布日期 |
2008.05.22 |
申请号 |
US20060601282 |
申请日期 |
2006.11.17 |
申请人 |
SPLENDORE MAURIZIO;WOUTERS ELOY R;THAKUR ROHAN A;DUNYACH JEAN-JACQUES |
发明人 |
SPLENDORE MAURIZIO;WOUTERS ELOY R.;THAKUR ROHAN A.;DUNYACH JEAN-JACQUES |
分类号 |
H01J49/04 |
主分类号 |
H01J49/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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