Isoproturon, 100µg/ml n Acetonitrile, 1ml

Cinidon-ethyl, 100 µg/ml, Acetonitrile, 5ml

3,3',4,5,5'-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

CLP Semi-Volatiles - Benzidines