Isoxathion, 10 µg/ml, Ethyl acetate, 10ml

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

PCB No. 77, 10µg/ml in Isooctane, 10ml

2,2',4,4',5,6'-Hexabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane