Chlorpyrifos, 100 µg/ml, Ethyl acetate, 5ml

2,3',4,5'-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL,

Saccharin-13C6, 0,5mg

2,3,4'-Tribromobiphenyl, 1.2ml x 50ug/ml, nonane