Sample preparation for residue analysis of pesticides

Sample preparation for residue analysis of pesticides

Sample cleanup with gel permeation chromatography (GPC) is a commonly used method in environmental and food analysis. It is a powerful way to increase the limit of detection to levels required for analysis of pesticide residues and other trace impurities. Well-established GPC sample cleaning methods such EN 12393, EN 1528, and US EPA SW-846 Method 3640A are quite time-consuming and solvent-intensive procedures. In this application note, the often used Bio-Beads SX-3 stationary phase is compared with the new EuroClean GPC material regarding performance and suitability for environmental and food laboratories. KNAUER's EuroClean GPC is shown to provide a significantly improved performance over Bio-Beads, allowing for a 30% increase in speed and solvent savings in the range of 30% ...  see more at:
http://www.knauer.net/dwnld_fls/a_e_vfd16_pesticide_residues_sample_cleanup.pdf?k=21021-1