“Seções de choque de ionizações parciais e totais da R-Carvona”

Abstract

This work aimed to study the ionic fragmentation of R-Carvone through mass spectroscopy and also, the experimental determination of its Partial (SCIP) and Total (SCIT) Ionization Cross Sections (SCIT) for electron collisions with impact energies from 8 to 100 eV. R-Carvone consists of a compound abundantly present in peppermint essential oil, presenting numerous herbal properties. All experimental data were acquired using a HIDEN-EPIC300 mass spectrometer that has an internal ionization source to produce the studied ionic fragments. The mass spectrum was acquired for an electron impact energy of 70 eV, in the mass region of 1 to 151 um and with a resolution of 1 um. This spectrum revealed the formation of 103 peaks due to the formation of singularly charged ionic fragments. For each of the 78 ionic fragments most abundantly observed in the mass spectrum, we recorded its formation curve as a function of electron impact energy in the region of 8 to 100eV, which was used to obtain the SCIP. SCIT values were generated from the addition of SCIPs. To the best of our knowledge, these data are new and, together with other studies of R-carvone carried out at LEAM, were published for the first time in the literature it help us to understand the interaction of this important molecule that shows anti tumorigenic properties.