Study of the major fragmentation pathways of cypermethrin and related synthetic insecticides using tandem mass spectrometry
| Autor: | John J. Monaghan, Ian A. Fleet, Lee W. Tetler |
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| Rok vydání: | 1993 |
| Předmět: |
Chromatography
Collision-induced dissociation Chemistry Selected reaction monitoring Mass spectrometry Top-down proteomics Tandem mass spectrometry Biochemistry Fragmentation (mass spectrometry) Molecular Medicine Nuclear Experiment Instrumentation Quadrupole mass analyzer Spectroscopy Electron ionization |
| Zdroj: | Organic Mass Spectrometry. 28:626-634 |
| ISSN: | 1096-9888 0030-493X |
| DOI: | 10.1002/oms.1210280526 |
| Popis: | Fragmentation pathways of the synthetic pyrethroid cypermethrin and four structurally related insecticides were investigated using a tandem quadrupole mass spectrometer incorporating a hexapole collision cell under positive-ion electron impact ionization conditions. Conventional mass spectrometry using the first quadrupole analyser only and tandem mass spectrometry on selected precursor ions and product ions, and also constant neutral loss scan experiments, were used. Mechanisms and fragmentation pathways are proposed to explain the inherent stability of ions associated with the benzylphenoxy portion of this class of insecticide. |
| Databáze: | OpenAIRE |
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