| Desorption Sources... |
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| • | In desorption
methods, energy is |
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| introduced in
various forms to the liquid or |
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| solid sample in
such a way as to cause |
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| direct formation
of gaseous ions. As a |
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| consequence,
spectra are greatly |
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| simplified and
often consist of only the |
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| molecular ion or
the protonated molecular |
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| ion. |
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