Free access to GC Sampling Techniques

Perhaps the most difficult step in any GC analysis is the sample introduction. Solid and liquid samples need to be converted to the gas phase and then transported onto the column. Samples already in the gas phase need to be efficiently diverted or transported into the GC column. The aims of this module include investigating the various sampling techniques available for GC analysis. We will give a detailed description of manual injection and injection troubleshooting and describe the use of autosamplers to increase sample capacity, accuracy, and precision. The principles, primary operating parameters, and practical implementation of a series of sampling techniques are also explained.

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