Method 525.2 Solution A

Custom mix, pharmaceutical residues 3623.20 17?-Ethynylestradiol 9904.18 17a-Estradiol 8998.18 17ß-Estradiol 2513.9 Acetylsalicylic acid (Aspirin) 2545.14 (+/-)Atenolol 9500.19 Bezafibrate 1220.15 Bisphenol A 9224.15 Carbamazepine 9467.14 Diclofenac

17ß(H),21 alpha(H)-(22R)-Tetrakishomohopane , neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 79951-54-5

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