Determination of Environmental Contaminants Using an Electrospray InterfaceCombined with an Ion Trap Mass Spectrometer

摘要

The Environmental Protection Agency, through its Office of Research andDevelopment, was interested in determining environmental contaminants using a commercial electrospray which is interfaced to an ion trap mass spectrometer (ITMS) to analyze contaminants of concern. Optimization of the ITMS and its capability to detect nonvolatile environmental contaminants, including pesticides, herbicides, and azo dyes are emphasized in this paper. In particular, the collision-induced decomposition capabilities within the electrospray and within the ITMS are compared for the detection of these contaminants.