SUPELCOWAX 10 Capillary GC Column may be used for the analysis of milk fat in order to demonstrate its health benefits. It may also be used for high-resolution separation of polychlorinated biphenyls by comprehensive two-dimensional gas chromatography. Application: This column is based on one of the most widely used polar phases, Carbowax 20M, and is a polar column suitable for analyses of solvents, fatty acid methyl esters (FAMEs), food, flavor and fragrance compounds, alcohols, and aromatics. Additionally, this column is a great choice when a polar general purpose column is required.. 0.53mm ID. 30m Length. Material: Fused Silica. . . Sigma-Aldrich 25301-U SUPELCOWAX 10 Capillary GC Column, 1.0µm, 0.53mm ID, 30m Length, Fused Silica. Country of Origin : United States. Part Number : 1169J39EA. Pack of : 1.