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Negative Ion Mass Spectra of Organic Nitriles

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Abstract:

Negative ion mass spectra organic nitriles have been determined using 1 Torr of methane moderator/reagent gas in a chemical ionization source. The spectra contain abundant (M – 1) ions, and fragmentations are minimal. Ion/molecule reactions with residual oxygen, methane, and between sample molecules and ions form diverse products with low abundances relative to the (M – 1). Detection limits are comparable with positive ion methods, and for selected compounds, can be several orders of magnitude lower.

Keywords: Ion mass spectra; Organic nitriles

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702814731824

Affiliations: 1: National Institute of Environmental Health Sciences, Environmental Chemistry Branch, P.O. Box 12233, Research Triangle Park, North Carolina 27709 and Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27514 2: National Institute of Environmental Health Sciences, Environmental Chemistry Branch, P.O. Box 12233, Research Triangle Park, North Carolina 27709 and Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27514 3: National Institute of Environmental Health Sciences, Environmental Chemistry Branch, P.O. Box 12233, Research Triangle Park, North Carolina 27709 and Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27514

Publication date: January 1, 1981

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