EPA Method 8240A - Purgeable Surrogate Std Back Catalog number: 24002 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3399.9-100 Fenoprop, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 93-72-1 Price on request T542500 Topotecan Hydrochloride, 5mg Price on request 57234 Selenium (Se) Price on request