1-Methylanthracene, certified, 10mg

N-Acetyl-sulfamethazine, 10mg

EPA Method 525.2 - 526 Internal Standard

2,4,5-Trihlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 15862-07-4