Metolachlor-d6 (propyl-d6),100 µg/mL,acetonitrile,1mL,

PCB No. 209, 100µg/mL in Isooctane, 10ml

2,2',3,4',5,5'-Hexachlorobiphenyl,100 µg/mL,isooctane,1mL,

6-ß-Naltrexol