Triethyl phosphate, 1.2ml x 50ug/ml, toluene

2-Chloropyridine

2',3,4',5,5'-Pentachloro-4-[13C12]biphenylol, 1.2ml x 50ug/ml, toluene

Parathion,100 µg/mL,cyclohexane,1mL,