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Inlet ionization: Polar molecules including peptides and medium-sized proteins

Inlet ionization[5] complements DART by allowing the operator to analyze polar and charged compounds.  The sample can be aspirated directly from solution into orifice 1, or a matrix (3-nitrobenzonitriile) can be added to induce ionization. 


Solvent-assisted inlet ionization of naphthol blue black dye.