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USGS · 70023851

The potential of combining ion trap/MS/MS and TOF/MS for identification of emerging contaminants

I. Ferrer·E. T. Furlong·C.E. Heine·E.M. Thurman
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Abstract

The use of a method combining ion trap tandem mass spectrometry (MS/MS) and time of flight mass spectrometry (TOF/MS) for identification of emerging contaminates was discussed. The two tools together complemented each other in sensitivity, fragmentation and accurate mass determination. Liquid chromatography/electrospray ionization/ion-trap tandem mass spectrometry (LC/ESI/MS/MS), in positive ion mode of operation, was used to separate and identify specific compounds. Diagnostic fragment ions were obtained for a polyethyleneglycol(PEG) homolog by ion trap MS/MS, and fragments were measured by TOF/MS. It was observed that the combined method gave an exact mass measurement that differed from the calculated mass.

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I. Ferrer, E. T. Furlong, C.E. Heine, E.M. Thurman. 2002. The potential of combining ion trap/MS/MS and TOF/MS for identification of emerging contaminants. https://pubs.usgs.gov/publication/70023851

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