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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.
Additional Publication Details
The potential of combining ion trap/MS/MS and TOF/MS for identification of emerging contaminants
Larger Work Title:
Proceedings 50th ASMS Conference on Mass Spectrmetry and Allied Topics
Number of Pages:
Porceedings - 50th ASMS Conference on Mass Spectrometry and Allied Topics