EPA Method 8270C Mix #26

Metoprolol tartrate, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 56392-17-7

Ipronidazole-hydroxy, 10mg

Dichlofenthion, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 97-17-6