EPA Method 8330 Analyte Back Catalog number: 79077 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95905 VPH Standard Price on request 10113.18-50-IO 1,9-Dimethyl-7-ethylphenanthrene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 46870-52-4 Price on request 2698.19-10MG Nortriptyline hydrochloride Price on request