6-Methylchrysene, 100 µg/ml, Acetonitrile, 5ml

Metsulfuron-methyl, 10 µg/ml, Acetonitrile, 10ml

Dimethachlor, 100 µg/ml, Acetonitrile, 5ml

2,4,4',6-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL,