WHO PCB Extraction Standard, 100pg/µl in nonane, 1,2ml Back Catalog number: P48-W-ES Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 678394 Diphenylamine, 100 µg/ml, Acetonitrile, 1ml Price on request 678197 Lepimectin, 100 µg/ml, Acetonitrile, 1ml Price on request 8577.X-K-W Triton X-114 Price on request