Pyrazophos, 10.0 µg/ml, Ethyl acetate, 10ml

2,2',4,4',6,6'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

EPA Method 610 PAH Mix, in MeCH:MeOH, 1ml

Clopyralid (Lontrel)