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The Trace Analysis of DEET in Water using an On-line Preconcentration Column and Liquid Chromatography with UV Photodiode Array Detection
Citation:
ADAMS, W., V. V. NAMBOODIRI, AND CHRISTOPHER IMPELLITTERI. The Trace Analysis of DEET in Water using an On-line Preconcentration Column and Liquid Chromatography with UV Photodiode Array Detection. Presented at 237th American Chemical Society National Meeting, Salt Lake City, UT, March 22 - 26, 2009.
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Description:
A method for the detection of trace levels of N,N-diethyl-m-toluamide (DEET) in water is discussed. The method utilizes an on-line preconcentration column in series with high performance liquid chromatography (HPLC) and UV photodiode array detection. DEET, a common insect repellent, has been detected in finished drinking water and has been shown to be recalcitrant in water treatment processes. Current methods of analysis involve solvent extractions and solid phase extraction (SPE), which can be labor intensive and require a considerable amount of sample handling. Extraction and concentration steps are necessary for the analysis of DEET at very low concentrations. In addition, mass spectrometry or tandem mass spectrometry may be needed for low detection limits of DEET. These methods of detection can be costly. This study allows for the quantification of DEET at low part-per-billion (ppb) and part-per-trillion (ppt) levels using common HPLC UV detection.
