A SIFT Study of the Reactions of H3O+, NO+ and O2+ with Hydrogen Peroxide and Peroxyacetic Acid

0181690 - UFCH-W 20030121 RIV NL eng J - Článek v odborném periodiku
Španěl, Patrik - Diskin, A. M. - Wang, T. - Smith, D.
A SIFT Study of the Reactions of H3O+, NO+ and O2+ with Hydrogen Peroxide and Peroxyacetic Acid.
International Journal of Mass Spectrometry. Roč. 228, - (2003), s. 269-283. ISSN 1387-3806. E-ISSN 1873-2798
Grant CEP: GA ČR GA202/03/0827; GA ČR GA203/02/0737
Výzkumný záměr: CEZ:AV0Z4040901
Klíčová slova: SIFT * hydrogen peroxide * peroxyacetic acid
Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
Impakt faktor: 2.361, rok: 2003

We have carried out a selected ion flow tube, SIFT, study of the reactions of H3O+, NO+ and O2+ ions with hydrogen peroxide, H2O2, in the presence of excess water vapour and peroxyacetic acid, CH3C(O)OOH, in the presence of comparable concentrations of acetic acid, CH3COOH. This study was initiated to investigate if these peroxides could be analysed in humid air using selected ion flow tube mass spectrometry, SIFT-MS, using the above precursor ions. Rate coefficients and product ions have been determined for the NO+ and O2+ reactions with H2O2 molecules (H3O+ ions do not react at a measurable rate with H2O2 molecules) and for the rapid reactions of H3O+, NO+ and O2+ with CH3C(O)OOH molecules. It turns out that both H3O+ and O2+ ions are unsuitable for SIFT-MS analyses of these peroxides, either because of low reactivity and/or the production of common product ions for their reactions with H2O and CH3COOH molecules.
Trvalý link: http://hdl.handle.net/11104/0078222