Volatile Mix, 2.0mg/mL in MeOH, 5 x 1ml

gamma-HCH, 10.0 µg/ml, Ethyl acetate, 10ml

4-Aminobiphenyl

2,4,4'-Trichlorobiphenyl-2',3',5',6'-d4, 100 µg/mL in Isooctane, 1mL