EPA Method 515.3 - Derivatized acids

Digoxin,1000 µg/mL,MeOH,1mL,

n-Tetradecane, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 629-59-4

2,3,4,5-Tetrachloro-4'-methoxy[13C12]biphenyl, 1.2ml x 50ug/ml, toluene