Halfenprox, 10.0 µg/ml, Acetonitrile, 10ml

2-Ethylbutyraldehyde

PBB-No. 1, 10 ng/µl, 10ml

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