PCB Congeners Standard Back Catalog number: 94239 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 684531 D3-Ketoprofen, 100 µg/ml, Acetonitrile, 1ml Price on request 70082 Chloroneb Price on request 93128 Cyclic Hydrocarbons Std, 2000µg/ml in MeOH, 1ml Price on request