EPA Method 8270A - Analytes Mix #8 Back Catalog number: 10018R Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73504 Phthalazone Price on request 96868 Heptachlor Price on request 2193.8-50-ME Perfluorooctane sulfonic acid, potassium salt,50 µg/mL,MeOH,1mL, Price on request