delta-HCH, certified, 50mg

Isazofos, 10.0 µg/ml, Ethyl acetate, 10ml

Interference Standard Mix 2

Sodium(1H,1H,2H,2H-perfluorooctyl-1H,1H,2H,2H-perfluorodecyl)phosphate, 50µg/ml in MeOH, 1,2ml