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Temperature programming in gas chromatography (GC) analysis is a technique used to separate and analyze complex mixtures of volatile compounds. In this technique, the temperature of the GC column is gradually increased during the analysis, which allows for the separation of compounds with different boiling points. Compounds with lower boiling points elute from the column first, followed by compounds with higher boiling points. The temperature program is designed to optimize the separation of the compounds of interest and to minimize the analysis time.