4-Nonylphenol-di-ethoxylate, 50 µg/ml, Acetone,

WA EPH Matrix Spike Mix

alpha alpha alpha (20S)-Cholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 41083-75-4

Magnesium (Mg)