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EnglishN-Alkyl-N-tosyl amino acid esters were ionized by fast atom bombardment (FAB) in a nitrobenzyl alcohol matrix through oxidative processes leading to molecular radical cations (M(+.)). The addition to the matrix of Cu-II salts induces the ionization through proton attachment whereby [M + H](+) are exclusively displayed by the positive-ion FAB spectra. The formation of electron donor-acceptor complexes between the analytes and the matrix lowers the critical energy for the ionization by one-electron removal from the substrates.
Formation by Fast Atom Bombardment of molecular radical cations by electron donor-acceptor complexes from tosylated amino acid esters / Athanassopoulos, C; Papaioannou, D; Napoli, A; Siciliano, Carlo; Sindona, Giovanni. - In: JOURNAL OF MASS SPECTROMETRY. - ISSN 1076-5174. - 30:9(1995), pp. 1284-1290.
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| Titolo: | Formation by Fast Atom Bombardment of molecular radical cations by electron donor-acceptor complexes from tosylated amino acid esters | |
| Autori: | ||
| Data di pubblicazione: | 1995 | |
| Rivista: | ||
| Citazione: | Formation by Fast Atom Bombardment of molecular radical cations by electron donor-acceptor complexes from tosylated amino acid esters / Athanassopoulos, C; Papaioannou, D; Napoli, A; Siciliano, Carlo; Sindona, Giovanni. - In: JOURNAL OF MASS SPECTROMETRY. - ISSN 1076-5174. - 30:9(1995), pp. 1284-1290. | |
| Abstract: | N-Alkyl-N-tosyl amino acid esters were ionized by fast atom bombardment (FAB) in a nitrobenzyl alcohol matrix through oxidative processes leading to molecular radical cations (M(+.)). The addition to the matrix of Cu-II salts induces the ionization through proton attachment whereby [M + H](+) are exclusively displayed by the positive-ion FAB spectra. The formation of electron donor-acceptor complexes between the analytes and the matrix lowers the critical energy for the ionization by one-electron removal from the substrates. | |
| Handle: | http://hdl.handle.net/20.500.11770/142663 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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