Browsing by Author "Todd, John F. J."

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    Negative Ion Mass Spectrometry: Part 2?—Ionization Processes in 2- and 3-Nitrotoluene
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1974, 70 (07), 1974) Alexander, Roger G.; Bigley, David B.; Turner, Robert B.; Todd, John F. J.
    Ionization efficiency curves (profiles) have been recorded for parent and major daughter negative ions from 2- and 3-nitrotoluene. From the effects of adding sulphur hexafluoride as a thermal electron scavenger it is concluded that slow electron capture is a major process in the formation of both parent and fragmentation product ions. The conditions obtaining within a negative ion source operating with 70 eV electrons are discussed.