Hexavalent Chromium (Cr 6+)

[Methyl[(tridecafluorohexyl)sulphonyl]amino]ethyl acrylate,1000 µg/mL ,MeOH,1mL,

2,2',3,3',5,5',6,6'-Octachlorobiphenyl ,100 µg/mL,isooctane,1mL,

4,4-Pentamethylene-2-pyrrolidone, >98%, 5g