发明名称 |
Sequencing ion packets for ion time-of-flight mass spectrometry |
摘要 |
A method and apparatus for analyzing ions by determining times of flight include establishing an encoded sequence for launching packets of ions from a source region toward a detector. The encoded sequence is one in which the high-mass ions of a leading packet will be passed by the low-mass ions of a trailing packet. Thus, a high efficiency time-of-flight mass spectrometer is formed. The ions of each packet are acted upon to bunch the ions of the packet, thereby compensating for initial space and/or velocity distributions of ions in the launching of the packet. The times of arrival of the ions are determined at the detector to obtain a signal of overlapping spectra corresponding to the overlapping launched packets. A correlation between the overlapping spectra and the encoded launch sequence is employed to derive a single non-overlapped spectrum.
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申请公布号 |
US5396065(A) |
申请公布日期 |
1995.03.07 |
申请号 |
US19930171076 |
申请日期 |
1993.12.21 |
申请人 |
HEWLETT-PACKARD COMPANY |
发明人 |
MYERHOLTZ, CARL A.;BAER, RICHARD L.;LE COCQ, CHRISTIAN A. |
分类号 |
G01N27/62;H01J49/40;(IPC1-7):H01J49/40 |
主分类号 |
G01N27/62 |
代理机构 |
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主权项 |
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地址 |
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