Direct analysis of C60 and related compounds with electrospray mass spectrometry

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Abstract

Without performing any charge transfer chemical reaction, C60 and its derivatives could be analyzed directly by electrospray mass spectrometry. Oxidation or reduction at the metal/solution interface of the probe tip was probably responsible for the formation of these radical cations and anions. This technique appeared to be superior to desorption chemical ionization and fast-atom bombardment ionization in the analysis of C60 derivatives because the mass spectra were characterized by molecular ions with little or no fragmentation.

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