DETERMINATION OF POLYCHLORINATED-BIPHENYLS WITH NON-O-CHLORINE SUBSTITUENT IN AROCLOR MIXTURES AND IN SOIL USING POROUS GRAPHITIC CARBON COLUMNS

Polychlorinated biphenyls (PCBs) with non-o-chlorine substituent were determined in several Aroclor mixtures and in PCB-contaminated soil sa mples. Non-o-Cl substituted PCBs were isolated using porous graphitic carbon/liquid chromatographic columns. Columns of this type provide a simple, rapid, and efficient method for the isolation of these compoun ds from different types of sample matrixes. The average percent recove ry of non-o-Cl substituted PCBs from porous graphitic carbon columns w as found to be 87%, with an average coefficient of variation of 3.1%.