发明名称 |
ISOLATING IONS IN QUADRUPOLE ION TRAPS FOR MASS SPECTROMETRY |
摘要 |
Ions in a predefined narrow mass to charge ratio range are isolated in an ion trap by adjusting the field and using ejection frequency waveform(s). The ejection waveforms have frequency components in a first and a second dimension, and, are applied across electrodes aligned along a first and a second dimension. Thus the mass-to-charge ratio isolation window is controlled and has an improved resolution without increasing the number of frequency components. |
申请公布号 |
EP1787313(A2) |
申请公布日期 |
2007.05.23 |
申请号 |
EP20050777239 |
申请日期 |
2005.07.29 |
申请人 |
THERMO FINNIGAN LLC |
发明人 |
QUARMBY, SCOTT, T.;SCHWARTZ, JAE, C.;SYKA, JOHN, E., P. |
分类号 |
H01J49/42;B01D59/44 |
主分类号 |
H01J49/42 |
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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