Bisphenol A, 100µg/ml in MeOH, 5ml

Pesticide/Herbicide Standard

2',3',4',5'-Tetrachloro-4-[13C12]biphenylol, 1.2ml x 50ug/ml, toluene

Sodium p-n-tetradecylbenzenesulfonate, 100 µg/ml,