title: A study on electrospray mass spectrometry of fullerenol C60(OH)24.
abstract: Full characterization of fullerenol C60(OH)24 by HPLC ESI-MS in negative and positive ionization modes was achieved. Fragmentor voltage and capillary voltage were optimized in order to obtain a good signal stability and the best peak intensity distribution for the fullerenol C60(OH)24 in both negative and positive modes. While the predominant base peak observed for C60(OH)24 in the negative ionization mode was [M - H](-) at m/z 1127, those observed in the positive mode were multiply charged [M - H2O + 4H](4+) at m/z 279 and [M - 12H2O + 2NH3 + 6H](6+) at m/z 158.
authors.affiliation: Petru Poni Institute of Macromolecular Chemistry, Centre of Advanced Research in Bionanoconjugates and Biopolymers, Aleea Grigore Ghica Voda 41A, Iasi 700487, Romania.
authors.forename: Mihaela
authors.initials: M
authors.lastname: Silion
authors.forename: Andrei
authors.initials: A
authors.lastname: Dascalu
authors.forename: Mariana
authors.initials: M
authors.lastname: Pinteala
authors.forename: Bogdan C
authors.initials: BC
authors.lastname: Simionescu
authors.forename: Cezar
authors.initials: C
authors.lastname: Ungurenasu
keywords: electrospray; fullerenol C60(OH)24; mass spectrometry