Heptachlor endo-epoxide, 10.0 µg/ml, Cyclohexane,

Tris(4-isopropylphenyl) phosphate,50 µg/mL,toluene,1mL,

Mass-Labelled PCB Solution, 1.2ml x 1000ng/ml, nonane

2-Bromo-4’-chloroacetophenone