Počet záznamů: 1
Selected Ion Flow Tube, SIFT, Studies of the Reactions of H3O+, NO+ and O2+ with Eleven C10H16 Monoterpenes
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SYSNO ASEP 0181691 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Selected Ion Flow Tube, SIFT, Studies of the Reactions of H3O+, NO+ and O2+ with Eleven C10H16 Monoterpenes Tvůrce(i) Wang, T. (GB)
Španěl, Patrik (UFCH-W) RID, ORCID
Smith, D. (GB)Zdroj.dok. International Journal of Mass Spectrometry. - : Elsevier - ISSN 1387-3806
Roč. 228, - (2003), s. 117-126Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova SIFT ; terpenes ; proton transfer Vědní obor RIV CF - Fyzikální chemie a teoretická chemie CEP GA202/03/0827 GA ČR - Grantová agentura ČR GA203/02/0737 GA ČR - Grantová agentura ČR CEZ AV0Z4040901 - UFCH-W Anotace The reactions of H3O+, NO+ and O2+ have been studied with the 11 terpenes, myrcene, ocimene, alpha- and beta-pinene, alpha- and gamma-terpinene, 2- and 3-carene, R- and S-limonene and camphene, at thermal energies using a selected ion flow tube (SIFT). This study was intended to explore the potential of SIFT mass spectrometry (SIFTMS), for analysing terpenes in air. All 33 reactions are seen to proceed at the collisional rate and multiple product ions result. The H3O+ reactions result in two major ion products, the stable protonated terpenes C10H17+ together with C6H9+ ions, with some minor products (a few percent) in some reactions. The NO+ reactions result in the parent cations, C10H16+, as the major product ion together with several fragment ions, notable C7H9+. The appearance of the minority adducts H3O+M and NO+M provide clues to the mechanisms of these reactions. The more energetic O2+ ions result in greater fragmentation and the parent terpene cations are only minority products. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2004
Počet záznamů: 1