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

Methyltin trichloride, 1000 µg/ml, Methanol, 5ml

2,3,5,6-Tetrachlorobiphenyl, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 33284-54-7

Ethanol standard in serum,1.3g/L,serum, 1.5mL