Native PCB Stock Solution , 1.2ml , nonane

Oxalic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 144-62-7

EPA Method 8121 Internal Standard

Chlorothalonil, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 1897-45-6