Undecafluorohexanoic acid, 100mg

2,2',4,4',5,6'-Hexabromodiphenyl ether, 1.2ml x 50ug/ml, nonane

N-methylperfluoro-1-octanesulfonamidoacetic acid isomeric mixture, 1.2ml x 50ug/ml, methanol

Spiking Solution