Ethofumesate, 250mg

1,2,3,4,7,8,9-Heptachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene

Iopamidol

Pristane/n-Heptadecane Control Standard/Whole Oil Control Mixture 4 1000µg Pristane and 2000µg n-Heptadecane in 1mL isooctane Pristane/n-Heptadecane