Bromination of aromatic compounds by residual bromide in sodium chloride matrix modifier salt during heated headspace GC/MS analysis

Analytical artifacts attributed to the bromination of toluene, xylenes, and trimethylbenzenes were found during the heated headspace gas chromatography/mass spectrometry (GC/MS) analysis of aqueous samples. The aqueous samples were produced from Fenton-like chemical oxidation reactions and contained...

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Veröffentlicht in:	Talanta (Oxford) 2013-12, Vol.117, p.20-26
Hauptverfasser:	Fine, Dennis D., Ko, Saebom, Huling, Scott
Format:	Artikel
Sprache:	eng
Schlagworte:	Aromatic compounds Aromatics Bromides Bromides - chemistry Bromination bromine Calibration Chlorides ferric sulfate Fresh Water - chemistry Gas Chromatography-Mass Spectrometry GC/MS H2O2 Halogenation headspace analysis Hot Temperature hydrogen peroxide Hydrogen Peroxide - chemistry Hydrogen-Ion Concentration Matrix modifier salt naphthalene oxidation Oxidation-Reduction potassium chloride potassium phosphates Sodium chloride Sodium Chloride - chemistry Spikes Toluene Toluene - analysis Toluene - chemistry Waste Water - chemistry Water Pollutants, Chemical - analysis Water Pollutants, Chemical - chemistry xylene Xylenes - analysis Xylenes - chemistry
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Zusammenfassung:	Analytical artifacts attributed to the bromination of toluene, xylenes, and trimethylbenzenes were found during the heated headspace gas chromatography/mass spectrometry (GC/MS) analysis of aqueous samples. The aqueous samples were produced from Fenton-like chemical oxidation reactions and contained aromatic compounds, hydrogen peroxide (H2O2), and ferric sulfate. Prior to GC/MS headspace analysis, the samples were acidified (pH
ISSN:	0039-9140 1873-3573
DOI:	10.1016/j.talanta.2013.08.039