Silica (SiO2)

Flufenacet, 100 µg/ml, Acetonitrile, 5ml

2,3',4,4'-Tetrabromodiphenyl ether, 50µg/ml IO,1ml

1,2,4,8-Tetrachloronaphthalene, 1.2mL x 50ug/mL, nonane