EPA Method 8260B Purgeable Internal Standard Back Catalog number: 26013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2518.7-K-ME Theophylline,1000 µg/mL,MeOH,1mL, Price on request 679940 Eprosartan mesylate, 10mg Price on request 93769 EPA Methd 8330 Standard Price on request