EPA Method 8260B Internal Standard Back Catalog number: 22213 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended L20950009AL PAH-Mix 9, 10µg/mL in Acetonitrile, 10ml Price on request 51141 WA VPH Marker Standard Price on request 3399.9-K-ME Fenoprop,1000 µg/mL,MeOH,1mL, Price on request