Method 8250 Acids Spiking Solution

C20 Triaromatic sterane, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 81943-50-2

Pyruvic Acid (C3H4O3)

Proquinazid, 100 µg/ml, Acetonitrile, 5ml