Silica (SiO2)

N-(4-chloro[13C6]phenyl)-N'-(3,4-dichloro[13C6]phenyl)[13C]urea , 1.2ml x 50ug/ml, methanol

Methyl 10-cis-heptadecenoate , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 75190-82-8

Mass-Labelled PCDDs/PCDFs/PCBs Solution/Mixture, 1.2ml, nonane