Using sophisticated computer modeling software, Restek has created two stationary phases for separating the 53 organophosphorus pesticides (OPP) listed in EPA method 8141.

• Application-specific columns for organophosphorus pesticides; best column combination for U.S. EPA method 8141
• Low bleed: ideal for GC-FPD, GC-NPD, or GC-MS analyses
• Stable to 330 to 340 °C
• Proprietary Crossbond® phases

Separation is improved and analysis time is significantly reduced, compared to other columns. The extended upper temperature limit of these phases (330 °C) allows analysts to bake out high molecular weight contamination typically associated with pesticide samples. The low-bleed columns are a perfect match for sensitive detection systems.