The use of elevated temperatures is a common tool for the analysis of carbohydrates using ligand-exchangechromatography. Sample preheating can further enhance peak efficiency and improve the analysis of carbohydrates.Ligand-exchange chromatography is a common technique for the analysis of carbohydrates using polymeric based columns.Since these types of HPLC columns require only water as the eluent, laboratories that prefer to not introduce solvents intotheir environment will use this type of “green technology” as a viable alternative for the analysis of many common samplescontaining carbohydrates. Columns packed with gels (low cross-linked, microporous, polystyrene-divinylbenzene polymer)typically require elevated temperatures for optimal peak efficiency. Peak efficiency can be further enhanced with the use ofa column oven equipped with a simple preheat device.