2-Chloro[13C12]biphenyl, 50.0µg/mL in Nonane/5% toluene, 1,2ml

Propachlor ESA sodium salt, 10mg

4-tert-Butyl-d9-phenol-2,3,5,6-d4, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-5, Cas.no. 225386-58-3

EPA Method 550 Analytes