Parathion-methyl, 100 µg/ml, Acetonitrile, 5ml

1,2,3,4-Tetramethylbenzene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 488-23-3

PCB No. 55, 100µg/ml in Isooctane, 1ml

Column Resolution Mix ASTM D-3524