2,4,6,8-Tetrachlorodibenzothiophene, 1.2ml x 50ug/ml, toluene

EPA Method 500 Series Internal Std #4

Perfluorooctane sulfonylfluoride, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 307-35-7

Triphenyltin chloride, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 639-58-7