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

Perfluoro-n-[1,2-13C2]undecanoic acid, 1.2ml x 50ug/ml, methanol

Tris(2-Ethylhexyl) phosphate, 100µg/ml in Toluene,

Inorganic Mix #3 Conc. #1