2,3,4,5-Tetrachlorophenol, 100 µg/ml, Methanol,

Oyster Tissue (Trace elements,methyl mercury), 25g

6-n-Butylchrysene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 6901-71-9

Edifenphos, 100 µg/ml, Acetonitrile, 1ml