Iohexol, 100 µg/ml in Acetonitrile, 5ml

Metoprolol tartrate, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 56392-17-7

Organophosphorus Pesticide Standard

Forafac 1157N, Amphoteric perfluorinated surfactant, Perfluoroalkyl betaine, 27 % , neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 133875-90-8