pH 2.0 Standard @ 25°C

1,4-Androstadiene-3,17-dione, 100mg

n-Tetracontane, ?13C: -27.05, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 4181-95-7

Nitrofen, 10.0 µg/ml, Acetonitrile, 10ml