Potassium (K), 1000µg/ml in 2%-HNO3/Water, 100ml

Gas Internal/Surrogate Standard

4-n-Octylphenol, 1000µg/mL in MeOH, 1ml

2,2',4,5,5'-Pentachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 37680-73-2