Biuret, 100mg

2,2',3,4,4',6-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL,

2-Butanone, certified, 1ml

N-Ethyl-N-(2-hydroxyethyl)perfluorooctylsulphonamide,50 µg/mL,acetonitrile,1mL,