2,2',5,5'-Tetrachlorobiphenyl,neat,neat,10mg,

Pesticides Calibration LC-MS/MS

1,2,3,7,8,9-Hexachlorodibenzofuran ,50 µg/mL,n-nonane,1mL,

4,4'-DDT, 100 µg/ml, Methanol, 1ml