EPA Method 8240A Internal Standard Back Catalog number: 22003 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70188 1-Fluoronaphthalene Price on request 2804.24-K-ME Medroxyprogesterone acetate,1000 µg/mL,MeOH,1mL, Price on request 0354.16-K-IO 2-Ethylanthracene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 52251-71-5 Price on request