The Application Notebook
Volume 35, Issue 6
Persistent organic pollutants (POPs) such as polychlorinated dibenzo-pdioxins (PCDDs), furans (PCDFs), and biphenyls (PCBs) continue to attract interest around the world due to strict regulations in force in many countries. Rapid extraction, sample cleanup, and analysis is needed for many laboratories processing samples for POPs. In addition to processing times, solvent use is an important consideration as the cost of sample clean up involving large amounts of solvents can be very high.
A newly developed automated sample extraction and cleanup system, which allows for rapid extraction of the sample (time approximately one hour) and fast cleanup (30 min). Solvent consumption is limited to 110–200 mL depending on lipid content and no dichloromethane is used during the cleanup step. The fully automated system allows for sample turnaround times of only a few hours and same day analysis and results.
The integrated PLE/Low Solvent Zero DCM EconoPrep generates clean extracts in less than 2 h and generates consistent, reproducible recoveries for a number of matrices. It is a green option that cuts electrical costs. The system uses only a total volume of 110–200 mL of hexane and toluene. It uses zero dichloromethane for the cleanup step.