Mass-Labelled PCDD/PCDF Solution/Mixture, 1.2ml, nonane Back Catalog number: DF-LCS-B40 Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 95276 PCB Mix 0.3 ppb Price on request 685456 4,4'-Dichlorobenzhydrol, 250mg Price on request 11908.20-1G Fluorescein (free acid),neat,neat,1g, Price on request