Research Topics
| Gilles ArsenaultSummaryAffiliation: Wellington Laboratories Inc Country: Canada N1G 3M5 Publications
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Detail Information
Publications
Separation and fluorine nuclear magnetic resonance spectroscopic (19F NMR) analysis of individual branched isomers present in technical perfluorooctanesulfonic acid (PFOS)Gilles Arsenault
Wellington Laboratories Inc, Research Division, Guelph, Ontario, Canada N1G 3M5
Chemosphere 73:S53-9. 2008..This allowed the quantification of the individual CF(3) branched isomers that predominate in technical PFOS...
Mass spectral studies of native and mass-labeled perfluorooctanesulfonamidesGilles Arsenault
Wellington Laboratories Inc, Research Division, 345 Southgate Drive, Guelph, Ontario, Ontario, N1G 3M5, Canada
Rapid Commun Mass Spectrom 21:929-36. 2007..The mass spectral data presented here will help chemists to identify signals found in a gas chromatographic/mass spectrometric (GC/MS) analysis that stem from these perfluoroalkylsulfonamides...
Synthesis of the two minor isomers, delta- and epsilon-1,2,5,6,9,10-hexabromocyclododecane, present in commercial hexabromocyclododecaneGilles Arsenault
Wellington Laboratories Inc, Research Division, 345 Southgate Drive, Guelph, Ont, Canada N1G 3M5
Chemosphere 68:887-92. 2007..Indeed, when a sample of ttt-CDT was brominated it gave two products, the NMR spectra and LC/MS and GC/MS behaviour of which confirmed that they are identical to the minor components, delta- and epsilon-HBCD, present in commercial HBCD...
Structure characterization and thermal stabilities of the isomers of the brominated flame retardant 1,2-dibromo-4-(1,2-dibromoethyl)cyclohexaneGilles Arsenault
Wellington Laboratories, Research Division, Guelph, ON, Canada N1G 3M5
Chemosphere 72:1163-70. 2008..Although technical TBECH does not contain the gamma- and delta-isomers, they may still be relevant environmental contaminants since manufacturing processes utilize thermal processes which may induce their formation...
Some issues relating to the use of perfluorooctanesulfonate (PFOS) samples as reference standardsGilles Arsenault
Wellington Laboratories Inc, Research Division, 345 Southgate Drive, Guelph, Ontario, Canada N1G 3M5
Chemosphere 70:616-25. 2008..If this effect were not taken into account, the concentration of the native would be inflated by 10%...
Nuclear magnetic resonance spectral characterization and semi-empirical calculations of conformations of alpha- and gamma-1,2,5,6,9,10-hexabromocyclododecaneGilles Arsenault
Wellington Laboratories Inc, 345 Southgate Drive, Guelph, Ontario, Canada N1G 3M5
Chemosphere 67:1684-94. 2007..This information may provide insight into the different behavior of the alpha- and gamma-HBCD diastereomers in the environment...
Structural characterization and thermal stabilities of the isomers of the brominated flame retardant 1,2,5,6-tetrabromocyclooctane (TBCO)Nicole Riddell
Wellington Laboratories Inc, Research Division, 345 Southgate Drive, Guelph, Ontario N1G3M5, Canada
Chemosphere 74:1538-43. 2009..Only bromide ions were seen in the mass spectra. APCI and APPI also failed to produce the molecular ion with sufficient intensity for identification...
Identification of the minor components of Great Lakes DE-71 technical mix by means of 1H NMR and GC/MSAlexandre Konstantinov
Wellington Laboratories Inc, Research Division, Guelph, Ontario, Canada N1G 3M5
Chemosphere 73:S39-43. 2008..The values obtained compare well between methods, and with data produced in earlier studies...
Branched perfluorooctane sulfonate isomer quantification and characterization in blood serum samples by HPLC/ESI-MS(/MS)Nicole Riddell
Wellington Laboratories Inc, Guelph, Ontario, Canada
Environ Sci Technol 43:7902-8. 2009....
Toxicity assessment of collected fractions from an extracted naphthenic acid mixtureRichard A Frank
Centre for Toxicology, University of Guelph, Guelph, ON, Canada
Chemosphere 72:1309-14. 2008..9+/-7.4 mg l(-1)). Although these results support field observations of microbial degradation of low molecular weight NAs decreasing OSPW toxicity, it is not clear why larger NAs, given their greater hydrophobicity, would be less toxic...
Identilication of the novel cycloaliphatic brominated flame retardant 1,2-dibromo-4-(1,2-dibromoethyl)cyclohexane in Canadian Arctic beluga (Delphinapterus leucas)Gregg T Tomy
Department of Fisheries and Oceans, Arctic Aquatic Research Division, Winnipeg, MB, R3T 2N6 Canada
Environ Sci Technol 42:543-9. 2008..Observed concentrations of the beta-isomer as measured by HRMS ranged from 1.1 to 9.3 ng/g (lipid weight)...
Factors influencing enantiomeric fractions of hexabromocyclododecane measured using liquid chromatography/tandem mass spectrometryChris H Marvin
Environment Canada, 867 Lakeshore Road, Burlington, Ontario L7R 4A6 Canada
Rapid Commun Mass Spectrom 21:1925-30. 2007....
Refinements to the diastereoisomer-specific method for the analysis of hexabromocyclododecaneGregg T Tomy
Department of Fisheries and Oceans, Freshwater Institute, 501 University Crescent, Winnipeg, Manitoba, R3T 2N6 MB Canada
Rapid Commun Mass Spectrom 19:2819-26. 2005....
