Column Evaluation Mix ASTM D-5134

7H-Dibenzo[c,g]carbazole, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 194-59-2

2,2',3',4,5-Pentachlorobiphenyl (97)

Methylparaben, 100 µg/ml, Acetonitrile, 5ml