AN332: Accelerated Solvent Extraction of Pesticide Residues in Food Products

Instrument Type: Automated Sample Prep

Residue analysis in crops and food products is routinely performed in regulatory and industrial laboratories around the world. Accelerated solvent extraction is an extraction technique that speeds the extraction process and reduces the total amount of solvent used. The system uses conventional liquid solvents at elevated temperatures and pressures, which results in increased extraction kinetics. Extraction of samples ranging from 1 to 30 g typically requires 12–17 min and 15–50 mL of solvent.

Separation and detection of 27 organochlorine pesticides by GC-MS

Instrument Type: GCMS

The Thermo Scientific Trace 1310 ISQ system is applied for the direct injection of extracted organochlorine pesticide samples. Separation is performed on a Thermo Scientific TraceGOLD TG-5SilMS column with MS SIM detection.

Detection of Organochlorine Pesticides by GC-ECD Following U.S. EPA Method 8081

Instrument Type: GC

The application describes a convenient method for analyzing and quantifying organochlorinated pesticides in extracts from solid and liquid matrices using a gas chromatograph (GC) equipped with an electron capture detector (ECD), according to the US regulation EPA 8081. The ECD detector has been demonstrated to be a sensitive, cheaper, and easier-to operate alternative to mass spectrometry, showing an excellent selectivity toward organohalogenated compounds.