Josamycin, 10 µg/ml, Acetone, 5ml

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

Perfluoro-n-heptanoic acid, 1.2ml x 50ug/ml, methanol

3-Perfluoropentyl propanoic acid (5:3), 50µg/ml in MeOH, 1,2ml