EPA Method 507 - Performance Check Solution

4-Chloro[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

Metazachlor-oxalamic acid (OA), 10mg

1-Nitrofluoranthene, neat, Solvent-neat, Unit 2mg, # of units-1, Cas.no. 13177-28-1