Perfluoro-n-[13C8]octanoic acid, 50µg/ml in MeOH, 1,2ml Back Catalog number: M8PFOA Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 79069 EPA Method 8330 Analyte Price on request 2136.21-K-IO Tri-p-tolylphosphate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 78-32-0 Price on request 96899 EPA Method 8260 - Purgeable Internal Standard Price on request