EPA Method 8081A Pesticide Standard B

1,2-Dichlorotridecane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 701920-72-1

Etrimfos, 100 µg/ml, Acetonitrile, 5ml

Melatonin,1000 µg/mL,MeOH,1mL,