QUANTITATIVE-ANALYSIS OF SELECTED PCB CONGENERS IN MARINE MATRIX REFERENCE MATERIALS USING A NOVEL CYANOBIPHENYL STATIONARY-PHASE

A novel p,p-cyanobiphenyl stationary phase (p-cyanobiphenyl,p-allyloxy methylpolysiloxane) has been evaluated for the GC investigation of po lychlorinated biphenyls (PCBs). Several PCB congeners which coelute on the phases typically used for PCB analysis (e.g. 5% phenyl methylpoly siloxane) are separated on the p,p-cyanobiphenyl phase, including the hexachlorobiphenyl congeners PCB 163, PCB 164, and PCB 138. In this wo rk, a p,p-cyanobiphenyl stationary phase was used to measure selected PCB congeners in two Standard Reference Materials (SRMs) available fro m the National Institute of Standards and Technology (NIST), and two C ertified Reference Materials (CRMs) available from the Community Burea u of Reference (BCR). The materials analyzed were SRM 1588, Organics i n Cod Liver Oil; SRM 1945, Organics in Whale Blubber; CRM 349, Chlorob iphenyls in Cod Liver Oil; and CRM 350, Chlorobiphenyls in Mackerel Oi l. Concentrations are reported for several PCB congeners which coelute on the 5% phenyl methylpolysiloxane, including PCB 163 and PCB 164.