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

(13C9)Endosulfan Sulfate, 100µg/ml in Nonane, 1,2ml

Triphenyltin chloride, 1000µg/mL, Solvent-methanol, Unit 5mL, # of units-1, Cas.no. 639-58-7

Perfluorohexylphosphonic acid, 50µg/ml in MeOH, 1,2ml