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Saturation of GC Detectors

Here the causes and effects of saturation and ways to detect and avoid it are discussed.
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byMatthew Klee
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In this technical article, the causes and effects of saturation and ways to detect and avoid it are discussed.

This article relates to the causes of saturation, what effect saturation might have on analytical results, how to know when it is happening, and how to avoid it.
Each style of GC detector will detect compounds based on some physical or chemical characteristic of the sample. In flame ionization detectors (FID), organic compounds are burned in an H2/air flame and form ions that are collected on a polarized electrode (the “collector”). Other detectors respond in different ways, but the response always ends up as an amplified electrical signal (which then is usually digitized and stored).

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Meet the Author(s):

  • Matthew Klee

    Dr Matthew S. Klee is internationally recognized for contributions to the theory and practice of gas chromatography. His experience in chemical, pharmaceutical and instrument companies spans over 30 years. During this time, Dr Klee’s work has focused on elucidation and practical demonstration of the many processes involved with GC analysis, with the ultimate goal of improving the ease of use of GC systems, ruggedness of methods and overall quality of results. 

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