CHED 220 |
| Procedures were studied to extract and analyze organic content from soil which eventually may be used, in conjunction with other methods, to definitively characterize locations that a particular soil may have originated from. Several extraction techniques – heating, sonication, and heating followed by sonication – as well as several different extracting solvents – (1:1) acetone:hexane, methylene chloride, acetone, methanol, and acetonitrile – were studied and the extractions were analyzed using gas chromatography coupled with mass spectrometry (GC-MS). Preliminary findings indicate that acetone:hexane and methylene chloride are the best choices of solvents. Heating followed by sonicating proved to be an effective extraction method. Experiments were designed using solid-phase extraction to remove large hydrocarbons present in all soils that interfere with analysis. |
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Undergraduate Research Poster Session: Analytical Chemistry
11:00 AM-1:00 PM, Monday, April 7, 2008 Morial Convention Center -- Hall A, Poster
Division of Chemical Education |