4,4'-DDE, 100 µg/ml, Toluene, 5ml

(+)-13a-Hydroxylupanine, 1mg

PAH Standard, 1000µg/ml in methylene chloride, 1ml

Sodium 1H,1H,2H,2H-perfluorodecane sulfonate (8:2), 50µg/ml in MeOH, 1,2ml