CHED 224 |
| Pyrethroids are a common insecticide used in agricultural and urban areas. While research has shown these insecticides are toxic to aquatic organisms, current analytical methods to detect pyrethroids in sediment at low concentrations are still under investigation. Pressurized Liquid Extraction device (PLE) was developed to increase extraction efficiency and decrease extraction time over traditional extraction methods. This research work was over developing a procedure for extracting pyrethroid insecticides by PLE. The goal was to extract pyrethroids from spiked sediment on the concentration level of parts per billion (ppb). The newly developed PLE technique was compared with commonly used Sonication Extraction. After extraction, the samples were cleaned by Solid Phase Extraction (SPE) with PSA and carbon cartridges. Gas Chromatography-Mass Spectrometry (GCMS) was used for pyrethroid analysis. Future plans consist of applying the developed procedure towards detecting pyrethroids in field collected samples. |
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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 |