Ofurace, 10 µg/ml, Ethyl acetate, 10ml

O,O-Diethyl dithiophosphate-13C4, ammonium salt,100 µg acid/mL,MeOH,1mL,

PCB Congeners & Hexachlorobenzene Mix #3

2,4-D, 100 µg/ml, Acetonitrile, 5ml