2-Methylchrysene, 10µg/mL in Acetonitrile, 10ml

N-Nitrosodi-n-butylamine

Josamycin, 10 µg/ml, Acetone, 5ml

2,2',3,3',4,5,5',6,6'-Nonachlorobiphenyl ,100 µg/mL,isooctane,1mL,