Internal Standards Mix 33, 2000 ng/µl, 1ml

n-Octadecanol

2,2',3,4',5,5',6-Heptachloro-4-biphenylol, 1.2ml x 50ug/ml, nonane

1,2,5,6,9,10-Hexabromocyclododecane, 1000µg/ml in Toluene, 1ml