Mass Spectrometric Characterization of N,N-bis(2,4,6-Trichlorophenyl)urea

摘要

The title compound, an environmentally persistent contaminant of estuarinesediments, has been characterized by direct exposure desorption mass spectrometry. Under electron impact and positive chemical ionization conditions fragmentation to trichloroanilinium species was the predominant process, and the respective molecular ion species were less abundant. In methane enhanced negative chemical ionization mass spectrometry the predominant process was loss of hydrogen and chlorine from the molecular anion. Relative abundances of the molecular ion species in the two chemical ionization modes were similar.