Internal Standard Spiking Solution, 1.2ml, nonane

3,3',5,5'-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL,

1-Methyl-4-n-propylbenzene, 1000µg/mL, Solvent-hexane, Unit 1mL, # of units-1, Cas.no. 1074-55-1

Calibration sol. CS4 for HRGC/HRMS Analysis of PCBs, in Nonane, 200µl