RETENTION INDEX SYSTEM FOR IDENTIFICATION OF POLYCHLORINATED BIPHENYL CONGENERS IN GAS CHROMATOGRAPHIC ANALYSIS

摘要

A retention index system is proposed based on a series of individual PCB congeners: PCB8, PCB31, PCB44, PCB101, PCB138, PCB180, PCB194. The retention indices of 59 PCB congeners were determined using this system under different GC conditions. This index system is suitable for electron-capture detection in the examination of environmental samples by temperature-programmed capillary gas chromatography and will have universal applicability.