2.2.3. Separation and analysis of volatiles by gas chromatography (GC)

Sample volatiles are separated by gas chromatography due to the greater sensitivity, easy reproducibility, and lower operating costs of this method (Handley and Adlard, 2005). Volatiles can be reliably separated under different chromatographic conditions by varying the injection conditions, the column, and the run parameters (temperature and flow). Here is a set of sample methods with comments on how certain parameters can be changed to evaluate chemicals with different volatilities.