Ultra-Sensitive Coal Tar Distillate Analysis by GC-PID

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Courtesy of Buck Scientific Inc

The distillation of Naphthenes and Coal Tars results in a complex array polynuclear aromatics, or which many do not show up in an analysis by GC-TCD or FID because they are at trace levels in the sample. In some cases these trace products are valuable and in sufficient quantity to warrant recovery. In order to discover hidden profits like this a GC equipped with a photo-ionization detector is used.

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