Pesticide use by its very nature has many unintended side effects for both the environment and human beings. Thus, it is necessary to have effective methods of extracting and analyzing compounds present in different matrices including water, soil, or even honeycomb. Since solvents are oftentimes used in extraction and sample preparation, it is important to explore greener methods to limit or eliminate solvent use. We have evaluated alternatives to existing EPA methods for the extraction and concentration of pesticides from water samples and subsequent analysis using Gas Chromatography Mass Spectrometry. The techniques include modifications to the EPA method 3510c Liquid-Liquid Extraction (LLE), the Quick, Easy, Cheap, Effective, Rugged, Safe (QuEChERS) technique, and solid state extraction techniques. The effectiveness of these methods in our studies of different classes of pesticides will be presented.

Comparison of methods to EPA 3510c for the detection of several classes of pesticides in water using GC-MS

245th National Meeting (2013)

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