Expanding the range of halogenated 1′-methyl-1,2′-bipyrroles (MBPs) using GC/ECNI-MS and GC×GC/TOF-MS
- 11 January 2008
- journal article
- Published by Elsevier BV in Chemosphere
- Vol. 71 (8), 1557-1565
- https://doi.org/10.1016/j.chemosphere.2007.11.051
Abstract
Halogenated 1′methyl-1,2′-bipyrroles (MBPs) have been identified worldwide in marine mammals. Here we present the tentative identification of previously undetected MBP congeners in Delpinus delphis blubber using gas chromatography/electron capture negative ion mass spectrometry (GC/ECNI-MS) and comprehensive two-dimensional gas chromatography/time of flight mass spectrometry (GC × GC/TOF-MS). This is the first report of 26 congeners. The presence of numerous partially halogenated congeners suggests that they are either biosynthesized concomitantly with their perhalogenated counterparts or that their dehalogenation products can also bioaccumulate. The newly found compounds fit the geographic trend that has been previously noted. That is, samples from the Atlantic Ocean are dominated by the more brominated congeners while those from the Pacific are dominated by the more chlorinated congeners.Keywords
This publication has 31 references indexed in Scilit:
- Photolytic dehalogenation of the marine halogenated natural product Q1Chemosphere, 2008
- Anthropogenic and Naturally Occurring Organobrominated Compounds in Fish Oil Dietary SupplementsEnvironmental Science & Technology, 2007
- Recent developments in the analysis of brominated flame retardants and brominated natural compoundsJournal of Chromatography A, 2007
- Brominated Dibenzo-p-Dioxins: A New Class of Marine Toxins?Environmental Science & Technology, 2007
- Using Comprehensive Two-Dimensional Gas Chromatography Retention Indices To Estimate Environmental Partitioning Properties for a Complete Set of Diesel Fuel HydrocarbonsAnalytical Chemistry, 2005
- Aryl hydrocarbon receptors: diversity and evolution11Invited review for Chemico-Biological Interactions.Chemico-Biological Interactions, 2002
- High-resolution separation of polychlorinated biphenyls by comprehensive two-dimensional gas chromatographyJournal of Chromatography A, 2002
- Marine natural productsNatural Product Reports, 2000
- Synthesis and identification of two halogenated bipyrroles present in seabird eggsChemical Communications, 1999
- Identification and Quantification of Polybrominated Diphenyl Ethers and Methoxy-Polybrominated Diphenyl Ethers in Baltic BiotaEnvironmental Science & Technology, 1997