Atrazine-desethyl-2-hydroxy, 100µg/ml in AL, 5ml

Roxithromycin, 100 µg/ml, Methanol, 1ml

Semi-Volatile Standard

Coronene-d12, 1000µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 16083-32-2