EPA Method 548 Analyte

Naltrexone hydrochloride, 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 16676-29-2

Ketoprofen, 100µg/ml in Acetonitrile, 5ml

Etridiazole, 10 µg/ml, Acetone, 10ml