Mass-Labelled PCB Solution/Mixture , 1.2ml, nonane Back Catalog number: PCB-LCS-A20 Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 79177 Endrin aldehyde, 1000µg/ml in Acetone, 1ml Price on request 98860 Formaldehyde-DNPH Level 3 (1.0ug/mL) Price on request 677644 Demeton-O, 10.0 µg/ml, Cyclohexane, 10ml Price on request