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Improving detection limits in chromatography by signal averaging

✍ Scribed by Ghaoui, Labib ;Rothman, L. David

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
386 KB
Volume
15
Category
Article
ISSN
0935-6304

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✦ Synopsis

Abstract

Ensemble 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 described.

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