Ofurace, 100 µg/ml, Acetonitrile, 1ml

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

2,4-DB methyl ester

Tecnazene, 100 µg/ml, Acetonitrile, 1ml