Matrix Spiking Solution, 1.2ml, nonane

2,2',3',4,4',5,5'-Heptachloro-3-biphenylol, 1.2ml x 50ug/ml, nonane

5-cis,8-cis,11-cis-Eicosatrienoic acid , Approx. 2mg in approx. 0,5mL methanol, Solvent-, Unit , # of units-, Cas.no. 20590-32-3

6-Ethyl-2-thiouracil, 10mg