Part No: AN022-HORIssued year: 2009File size: 0.91mbFile type: pdf
EPA Method 1657 describes the procedure to determine low ppb levels of organophosphorous pesticides in wastewater.
The disks compared in this study are: “Certified for Automation” Atlantic™ C18 (47 mm) and 3M Empore™ High Performance Extraction Disk C18 (47 mm).
Part No: AN021-HORIssued year: 2009File size: 0.89mbFile type: pdf
Method 1657 describes the procedure to determine low ppb levels of organophosphorus pesticides in municipal and industrial wastewater.
The City of Fort Worth Water Department implemented Automated SPE for the analysis of organophosphorous pesticides by EPA Method 1657, using the Atlantic™ C18 solid phase extraction disk.
The Biotage® Horizon 4790 Automated Extraction System with Envision®
Platform controller, and the DryVap® Automated Drying
and Concentration System were used in this application note.
Part No: AN034-HORIssued year: 2010File size: 0.76mbFile type: pdf
EPA Method 8141B describes the performance based procedure to determine low ppb levels of organophosphorous pesticides in ground water.
The OP pesticides are extracted using solid phase extraction (SPE) based on the procedure outlined in Method 3535A for OP pesticides by Method 8141. The analysis is performed with capillary GC using a FPD
(flame photometric detector). This initial demonstration of capability was conducted using the Biotage® Horizon 4790 Automated Extractor System.