Mass-Labelled PCB Solution , 1.2ml x 20ng/ml, nonane Back Catalog number: PCB-SS-A20 Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 71203 2,4’-DDE Price on request 79098 Aroclor 1242 Price on request 675230 2,4-D, 100 µg/ml, Acetonitrile, 5ml Price on request