AbstractEnsemble or signal averaging has been used to increase detection limits in gas chromatography. The sample is injected several times into a gas chromatograph and the chromatograms generated are summed. The resulting chromatogram is treated as a separate chromatogram with the benefit of an improved signal‐to‐noise ratio. Use of the technique enables reliable quantitation, the time invested being used to convert an unacceptable signal‐to‐noise ratio into useful data. A discussion and some applications of the technique are de