Toluene, 100µg/mL in MeOH, 1ml

gamma-HCH, 10.0 µg/ml, Cyclohexane, 10ml

2,4,5-T-methyl ester, 10 µg/ml, Acetonitrile, 10

2,2',3,3',5,5',6,6'-Octachlorobiphenyl (202)