ICPM - AKCAL - S

Theophylline, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 58-55-9

lambda-Cyhalothric acid, 100µg/ml in Acetonitrile, 5ml

EPA Method 8240A/1666 - Purgeable Internal Std