Ion Formation of N-Methyl Carbamate Pesticides in Thermospray Mass Spectrometry: The Effects of Additives to the Liquid Chromatographic Eluent and of the Vaporizer Temperature.

M. Honing, D. Barceló, B.L.M. van Baar, R.T. Ghijsen, U.A.T. Brinkman

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

The effects of three additives-ammonium acetate, ammonium formate, and nicotinic acid-to the liquid chromatographic (LC) eluent and of the vaporizer temperature on the ion formation of N-methyl carbamate pesticides in thermospray (TSP) mass spectrometry was investigated by using filament- or discharge-assisted ionization. Nineteen carbamates and 12 of their known environmental degradation products were used as model compounds. The additives cause a strong reduction in the abundance of the characteristic fragment ions [M + H - CH
Original languageEnglish
JournalJournal of the American Society for Mass Spectrometry
Volume1044
DOIs
Publication statusPublished - 1994

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