Separation of Polyaromatic Hydrocarbons Using 2-Dimensional Thin-Layer Chromatography. An Environmental Chemistry Experiment
An experiment for an undergraduate environmental chemistry course is described. Students are given a soil sample from which they extract two (previously added) polyaromatic hydrocarbons (PAHs) using a Soxhlet apparatus. They determine the identity of the unknown PAHs by comparing the 2-dimensional t...
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| Veröffentlicht in: | Journal of chemical education 1999-12, Vol.76 (12), p.1691 |
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| creator | Crisp, Geoffrey T Williamson, Natalie M |
| description | An experiment for an undergraduate environmental chemistry course is described. Students are given a soil sample from which they extract two (previously added) polyaromatic hydrocarbons (PAHs) using a Soxhlet apparatus. They determine the identity of the unknown PAHs by comparing the 2-dimensional thin-layer chromatograms of the soil sample extract and a standard solution, both of which they must run themselves. Definitive identification is given by R f values and fluorescence colors (under 254-nm UV light). The experiment is suitable to be performed by large classes (ca. 30 students) and is, on average, completed in three hours. |
| doi_str_mv | 10.1021/ed076p1691 |
| format | Article |
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| ispartof | Journal of chemical education, 1999-12, Vol.76 (12), p.1691 |
| issn | 0021-9584 1938-1328 |
| language | eng |
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| source | American Chemical Society Journals |
| subjects | Chemistry Chromatography College students Environmental chemistry Hydrocarbons Inhalants Organic chemistry Polycyclic aromatic hydrocarbons Research Methodology Science education Thin layer chromatography Water |
| title | Separation of Polyaromatic Hydrocarbons Using 2-Dimensional Thin-Layer Chromatography. An Environmental Chemistry Experiment |
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