GC Troubleshooting—Origins of Ghost Peaks

Description

In gas chromatography, we sometimes see a peak in the chromatogram that is not expected to be there. We call it a “ghost peak”. There are a number of sources that can generate extra peaks. Your sample can get polluted, components can be generated in the injection port, gas lines can contaminate, Stationary phase can generate unwanted peaks and analytes can break down. We will discuss the different sources for ghost peaks and how we can reduce the formation or eliminate completely.