Amidosulfuron, 100 µg/ml, Acetonitrile, 5ml

2H,2H,3H,3H-Perfluorononanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 27854-30-4

4-Nitrophenol

EPA Method 200.8Mix