Significance of Competitive Reactions in an Atmospheric Pressure Chemical Ionization Ion Source: Effect of Solvent.

ABSTRACT: Ionization of organic compounds with different structural and energetic properties including benzene derivatives, polycyclic aromatic hydrocarbons (PAHs), ketones, and polyenes was studied using a commercial atmospheric pressure corona discharge (APCI) ion source on a drift tube ion mobility-quadrupole-time-of-flight mass spectrometer (IM-QTOFMS). It was found that the studied cohort of compounds can be experimentally ionized via protonation, charge transfer, and hydride abstraction leading to formation of [M + H]⁺, [M]^+•, and [M - H]⁺ species, respectively. By experimentally monitoring the product ions and comparing the thermodynamic data for different ionization paths, it was proposed that NO⁺ is one of the main reactant ions (RIs) in the ion s

SUBMITTER: Valadbeigi Y 

PROVIDER: S-EPMC9164235 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature