Quinalphos, 100 µg/ml, Toluene, 1ml

Oxytetracycline, 96%,neat,neat,10mg,

O-Acetylsalicylic anhydride, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 1466-82-6

EPA Method 537 Internal Standard Primary Dilution Standard, in MeOH, 1,2ml