Chlorpyrifos, 100 µg/ml, Ethyl acetate, 5ml

4-Nitrophenol-d4, 1000µg/ml in MeOH, 1ml

tert-Butyl methyl ether + blank RFA, 10Wt%, Solvent-neat, Unit 10mL, # of units-2+1, Cas.no. 1634-04-4

4,4'-DDD, 100 µg/ml, Ethyl acetate, 5ml