PCB Congeners & Hexachlorobenzene Mix #5

Sodium perfluoro-1-decanesulfonate, 1.2ml x 50ug/ml, methanol

2-(2-Hydroxyethoxy)ethyl 2-hydroxypropyltetrabromo phthalate,50 µg/mL ,toluene,1mL,

Mix of 4-Nonyl-& 4-t-Octylphenols ethoxylates, in Acetone, 1ml