Mass-Labelled PCB Extraction Standards, 1.2ml, nonane Back Catalog number: PCB-LCS-H Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 673513 Chlorthion, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 680067 Nicotinamide, 250mg Price on request 674767 Flupyrsulfuron-methyl, 10mg Price on request