QuEChERS Extraction Method for Contaminants of Emerging Concern (CECs) in Marine and Freshwater Sediments

Poster Presentation

Prepared by S. Estil
LA County Sanitation Districts, 1965 Workman Mill Road, Whittier, CA, 90601, United States

Contact Information: sestil@lacsd.org; +15629084288


The Quick-Easy-Cheap-Effective-Rugged-and Safe or QuEChERS extraction method was originally developed for the determination of pesticide residues in fruits and vegetables. Since its introduction, the methodology has found applications in other areas including the environmental field. In this study, we demonstrate the ease of using a modified QuEChERS method to extract contaminants of emerging concern (CECs) from marine and freshwater sediments. The optimized procedure was validated for a suite of compounds including pharmaceuticals, personal care products, steroid hormones, alkylphenol ethoxylates, and pyrethroid pesticides. Detection limits in the low to sub ng/g range were achieved with average extraction efficiencies within the 80-120% range, and precision values (expressed as relative standard deviations, RSD) less than 20%.