Barium (Ba)

4-Chlorotetrahydropyran,1000 µg/mL,MeOH,1mL,

epsilon-HCH, 10.0 µg/ml, Cyclohexane, 1ml

2,3,3',5',6-Pentachlorobiphenyl,100 µg/mL,isooctane,1mL,