EPA Method 8260B Purgeable Internal Standard Back Catalog number: 26013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674056 Phenkapton, 10.0 µg/ml, Acetonitrile, 1ml Price on request TFA Trifluoroacetic acid, 50µg/ml in MeOH, 1,2ml Price on request 50256 Sodium Nitrate as (NO3) Price on request