A comparison of femtosecond and nanosecond multiphoton ionization and dissociation for some nitro-molecules

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dc.contributor.authorLedingham, K. W. D.en
dc.contributor.authorKilic, H. S.en
dc.contributor.authorKosmidis, C.en
dc.contributor.authorDeas, R. M.en
dc.contributor.authorMarshall, A.en
dc.contributor.authorMcCanny, T.en
dc.contributor.authorSinghal, R. P.en
dc.contributor.authorLangley, A. J.en
dc.contributor.authorShaikh, W.en
dc.date.accessioned2015-11-24T18:33:48Z
dc.date.available2015-11-24T18:33:48Z
dc.identifier.issn0951-4198-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/16811
dc.rightsDefault Licence-
dc.subject193 nmen
dc.subjectmass-spectrometryen
dc.subjectlaser ionizationen
dc.subjectfragmentationen
dc.subjectnitromethaneen
dc.subjectnitrobenzeneen
dc.subjectphotofragmentationen
dc.subjectphotodissociationen
dc.subjectphotoionizationen
dc.subjectbeamen
dc.titleA comparison of femtosecond and nanosecond multiphoton ionization and dissociation for some nitro-moleculesen
heal.abstractResonance-enhanced multiphoton ionization spectrometry (REMPI), using time-of-flight mass spectrometers and tuned lasers, has proved an important ultra-sensitive analytical technique, Nevertheless, conventional nanosecond REMPI suffers from a number of shortcomings: most importantly, REMPI often fails through rapidly (pre)dissociating states, In the case of thermally labile molecules, which include the nitro-molecules, either no or very small parent or high/mass fragment ion peaks exist, making the interpretation of the mass spectra ambiguous at best and often impossible, Femtosecond laser mass spectrometry (FLMS) can often 'defeat' these dissociative states, resulting in large parent or high-mass fragment ion peaks which make the interpretation less ambiguous. In the present paper, nanosecond and femtosecond multiphoton ionization and fragmentation are compared using time-of-flight mass spectrometry for NO2 gas and a number of different nitro-molecules: nitromethane, nitrobenzene, m-nitrotoluene, dinitrotoluene and trinitrotoluene.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.secondary<Go to ISI>://A1995TL38600011-
heal.identifier.secondaryhttp://onlinelibrary.wiley.com/store/10.1002/rcm.1290091512/asset/1290091512_ftp.pdf?v=1&t=h0xpe1wf&s=6da34823dd518cd73b8d6ad5980f9bfb69db02ed-
heal.journalNameRapid Communications in Mass Spectrometryen
heal.journalTypepeer reviewed-
heal.languageen-
heal.publicationDate1995-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιώνel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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