Petroleum Marker Standard Conc

1,2,4,7-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane

4-n-Nonylphenol, 100µg/ml in MeOH, 5ml

2,5-Dimethyldiphenylsulfide, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 16704-47-3