EPA Method 531.1 - Analytes Mixture Back Catalog number: 33042R Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678147 Simetryn, 100 µg/ml, Acetonitrile, 5ml Price on request 1132.12-15K-10IO n-Dodecane, Selectivity Check Standard, 1.5Wt%, Solvent-isooctane, Unit 10mL, # of units-1, Cas.no. 112-40-3 Price on request 19262 EPA Method 525 - PAH Standard Price on request