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Gas Chromatography

  • Michael C. Qian
Chapter
Part of the Food Science Texts Series book series (FSTS)

Abstract

Gas chromatography (GC) has many applications in the analysis of food products. GC has been used for the determination of fatty acids, triglycerides, cholesterol, gases, water, alcohols, pesticides, flavor compounds, and many more. While GC has been used for other food components such as sugars, oligosaccharides, amino acids, peptides, and vitamins, these substances are more suited to analysis by high performance liquid chromatography. GC is ideally suited to the analysis of volatile substances that are thermally stable. Substances such as pesticides and flavor compounds that meet these criteria can be isolated from a food and directly injected into the GC. For compounds that are thermally unstable, too low in volatility, or yield poor chromatographic separation due to polarity, a derivatization step must be done before GC analysis. The two parts of the experiment described here include the analysis of alcohols that requires no derivatization step, and the analysis of fatty acids which requires derivatization. The experiments specify the use of capillary columns, but the first experiment includes conditions for a packed column.

Keywords

Fatty Acid Profile Benzyl Alcohol Sodium Methoxide Wine Sample Boron Trifluoride 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Resource materials

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Michael C. Qian
    • 1
  1. 1.Department of Food Science and TechnologyOregon State UniversityCorvallisUSA

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