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2004/12/03 | 化学电离质谱[Chemical Ionization Mass Spectroscopy]
类别(℃〖化学〗)
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发表于 13:15
Instead of being ionized by a strong field which might fragment it (as in conventional
mass spectroscopy
), in chemical ionization mass spectroscopy, the sample is instead combined with an unstable electron-poor species which has been created by electron bombardment. The electron-poor species stabilizes itself by donating a hydrogen ion to the species under study, which is then shot through the spectrometer. An example of the technique follow.
(here,
is the strongest acid).
A spike is then observed at CH
3
CH
2
OH
0
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