Mass-Labelled PCB Sampling Standard, 1.2ml, nonane Back Catalog number: P48-SS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 70256 Propachlor, 1000µg/ml in MeOH, 1ml Price on request 70090 Chlorpyrifos Price on request BB-31 2,4',5-Tribromobiphenyl, 1.2ml x 50ug/ml, nonane Price on request