PCB, Critical Pair Separation, Ion Ratio,

DOCUMENT: Application | Ref: 209-066-380Download
Category: Environmental, Separation Science Mass Spectrometry, TOF Mass Spectrometry

Defining the Retention Times of 209 PCB Congeners Using GCxGC-TOFMS

This article described the analysis of 209 individual PCB congeners using the LECO Pegasus 4D GCxGC-TOFMS instrument with ChromaTOF software. The study resulted in valuable t ‘ and t ” information for the identification of PCBs present in a sample. Based on t information, only one, two, or rarely three possible congeners will be contenders for the correct congener number. The user library created to look specifically at the PCBs did not have great success in correctly identifying the congener number based on the top hit from mass spectra alone, which is not unexpected since the pectra are so similar amongst same-Cl numbered congeners. However, combin