Retention Time Verification Standard Back Catalog number: 51172 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1871.22-K-CY n-Hexadecylcyclohexane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 6812-38-0 Price on request 0299.19-50-T 7-Methylbenz[a]anthracene, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 2541-69-7 Price on request DFP-LCS-B20 Mass-Labelled PCDDs/PCDFs/PCBs Solution/Mixture, 1.2ml, nonane Price on request