Analytical Instrument Documents

Introduction

Transformer oil containing no PCBs was diluted 10,000 times, and then this solution was spiked with a mixture of commercially available PCBs (KC-500). The resulting sample was analyzed by using the JEOL AccuTOF-GC with FastGC/MS conditions. Afterwards, the data was examined by varying the mass range window (called "window width") used for the PCB reconstructed ion chromatogram (RIC) to determine if the effect of the background impurities can be eliminated so that the analyte peaks are easily observed in the resulting data.