1,2,7,9-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane

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

Irgarol-d9 (tert-butyl-d9),100 µg/mL,acetonitrile,1mL,

Sodium p-n-tetradecylbenzenesulfonate, 100µg/mL, Solvent-methanol/water (50/50), Unit 1mL, # of units-1, Cas.no. 1797-33-7