Extraction of Soil using the SpeedExtractor E-916 for the Determination of Pesticides

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Courtesy of BÜCHI Labortechnik AG

This application note describes a fast and reliable way to extract organochlorine pesticides (OCP) from soil with the SpeedExtractor E-916. After reducing the volume with the Syncore Analyst the extracts were cleaned by using Florisil. The cleaned extracts were concentrated again and quantified by GC-ECD. The measurements are within the prediction interval (P.I.) at least 19 out of 20 times. Out of the 22 quantified values only one value was above the P.I. All pesticide values in the blanks were below the limit of quantification.

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