Quinmerac, 100µg/mL in Acetonitrile, 1ml

ISO 18857-1 4-n-Nonylphenol (ring13C6), Internal standard 1 ng/µL, in acetone, 5mL

2,2',4,4'-Tetrabromo-6-methoxy[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

2,2’,3,4,4’,5’-Hexachlorobiphenyl (138)