Isolation and Characterization of Sulfur-Containing Polycyclic Aromatic Compounds (Thia-Arenes) from Complex Environmental Mixtures |
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| Authors: | Christopher H Marvin Chun-Ling Li Laurie M Allan Brian E McCarry |
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| Institution: | 1. Aquatic Ecosystem Restoration Branch, National Water Research Institute , Environment Canada, Burlington, Ontario, L7R 4A6, Canada;2. Department of Chemistry , McMaster University , Hamilton, Ontario, L8S 4M1, Canada |
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| Abstract: | Abstract A multi-dimensional chromatographic method was developed and applied to the separation of thia-arenes and polycyclic aromatic hydrocarbons (PAH) derived from coal tar. A thia-arene-rich fraction, prepared using a combination of alumina chromatography and palladium chloride/silica gel chromatography, was further separated using normal phase HPLC to isolate fractions containing thia-arenes with molecular masses ranging from 184 amu to 284 amu. These fractions were analysed using gas chromatography-mass spectrometry; approximately one-half of the thia-arenes in a coal tar extract were retained and separated by the palladium chloride-silica gel step. This methodology has been successfully applied to coal tar, air particulate material, sediments and biological samples. |
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| Keywords: | Thia-arenes polycylic aromatic compounds sulfur source apportionment thiophenes |
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