TOC Calibration Standard

2',3,3',4',5,5'-Hexachloro-4-[13C12]biphenylol, 1.2ml x 50ug/ml, toluene

1-/3-Nitrobenzo[e]pyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 91259-16-4 / 81340-58-1

Isoproturon-desmethyl, 100µg/ml in ACN, 5ml