2,3,6-Trichlorophenol, 10 µg/ml, Methanol, 10ml

Dibutyltin-d18 dichloride, 1000µg/ml in MeOH, 1ml

Tylosin, 100 µg/ml, Methanol, 1ml

Perfluorododecanesulfonic acid, 50µg/ml in MeOH, 1ml