Mass Spectra -- determining the method of ionization

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Determining the method of ionization used in mass spectrometry, such as electrospray, FAB, or MALDI, solely by analyzing the mass spectra is not feasible. The ionization technique does not leave a distinct signature in the spectra that can be identified independently. The mass spectrometer operates separately from the ionization method, meaning that the spectra produced do not inherently reveal the ionization technique employed. The discussion clarifies that while one can analyze the spectra for various characteristics, identifying the specific ionization method used requires additional context beyond the spectra alone.
Chemmjr18
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Is there a way to look at mass spectra and determine the method of ionization? I.e., whether it's electrospray, FAB, MALDI, etc.
 
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EDIT: Actually, the question is quite vague so let me clarify. Are you asking if you can determine what ionization method was used just by looking at the spectra? Or are you asking if you can determine what ionization method should be used based on the spectra?

If the former, then no. The spectrometer itself is a different unit and it doesn't matter what ionization technique is used.
 

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