Instrument Standard 6

3,4,6,7-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane

2,2',3,3',5,5',6,6'-Octabromodiphenyl ether, 1.2ml x 50ug/ml, toluene

Clopyralid, 100µg/ml in Acetonitrile, 1ml