Clopyralid, 100 µg/ml, Acetone, 1ml

2,2',3,3',5,5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

3-Ethylcarbazole, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 5599-49-5

Benzo[a]chrysene, 100µg/ml in Toluene, 1ml