Metolachlor ESA sodium salt, 100 µg/ml, Acetonitr

Mefenpyr-diethyl, 100ug/ml in Acetonitril, 5ml

2,2',3,4,6,6'-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL,

17 alpha(H),21ß(H)-(22S)-Homohopane, 50µg/mL in Isooctane, 1ml