a) What portion of the incoming neutral molecules becomes ionized in an EI ion source?
b) Can you enumerate all techniques or sorts of inlet systems, if you like, for sample introduction into EI ion sources?
c) Suggest suitable sample introduction for a
- pure volatile liquid, e.g., xylene
- mixture of many volatile compounds, e.g., gasoline
- moderately volatile solid sample, e.g., benzopyrene
- solution of several moderately volatile organics, e.g., extract of N-heterocycles from coffee beans
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