Cations Std. Level 1

Custom mix of naphthalenes, diluted Same components as S-4747, at lower concentrations 0711.10 Naphthalene 92µg/mL 0713.11 2-Methylnaphthalene 233 0721.12 1,2-Dimethylnaphthalene

Custom mix, pharmaceutical residues, 10µg/mL each 3623.20 17?-Ethynylestradiol 9904.18 17a-Estradiol 8998.18 17ß-Estradiol 2545.14 (+/-)Atenolol 9500.19 Bezafibrate 1220.15 Bisphenol A 9224.15 Carbamazepine 9467.14 Diclofenac 10090.37 Erythromycin 1

Dechlorane 604, 1.2ml x 50ug/ml, toluene