Počet záznamů: 1
Redox transformations in desorption electrospray ionization
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SYSNO ASEP 0327485 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Redox transformations in desorption electrospray ionization Tvůrce(i) Benassi, M. (BR)
Wu, Ch. (AT)
Nefliu, M. (US)
Ifa, D. R. (US)
Volný, Michael (MBU-M) ORCID
Cooks, R. G. (US)Zdroj.dok. International Journal of Mass Spectrometry. - : Elsevier - ISSN 1387-3806
Roč. 280, 1-3 (2009), s. 235-240Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova mass spectrometry ; desorption electrospray ionization ; oxidation of biomolecules Vědní obor RIV CB - Analytická chemie, separace CEZ AV0Z50200510 - MBU-M (2005-2011) UT WOS 000263195500037 DOI 10.1016/j.ijms.2008.10.012 Anotace Redox changes occur in some circumstances when organic compounds are analyzed by desorption electrospray ionization mass spectrometry (DESI-MS). However, these processes are limited in scope and the data presented here suggest that there are only limited analogies between the redox behavior in DESI and the well-known solution-phase electrochemical processes in standard electrospray ionization (ESI). Positive and negative ion modes were both investigated and there is a striking asymmetry between the incidence of oxidation and of reduction. Although in negative ion mode DESI experiments, some aromatic compounds were ionized as odd-electron anion radicals, examples of full reduction were not found. By contrast, oxidation in the form of oxygen atomaddition (or multiple oxygen atomadditions)was observed for several different analytes Pracoviště Mikrobiologický ústav Kontakt Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Rok sběru 2010
Počet záznamů: 1