PCB No. 21, 100µg/ml in Isooctane, 1ml

Oxamyl, 100 µg/ml, Acetonitrile, 5ml

2,4-Dibromophenol-3,5,6-d3,1000 µg/mL,isopropanol,1mL,

3,3',5,5'-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL,