Chromatopak Analytical Instrumentation [India] Pvt. Ltd. Manufactures Polyethylene Glycol Phase Type Gas Chromatography Capillary Column. Chromatopak Analytical Instrumentation [India] Pvt. Ltd. Is the supplier of columns, consumables and accessories for HPLC, GC, IC, and SPE etc. Polyethylene Glycol Phase Type Gas Chromatography Capillary Column is used for the analysis of all polar compounds. Polyethylene Glycol Phase Type Gas Chromatography Capillary Column is particularly suited to esters, alcohols, ketones and glycols. The column is also suitable for the separation of aromatic isomers such as the xylene isomers. It is a highly cross-linked and fully deactivated column resulting in excellent peak shape for all alcohols and can be seen from this application chromatogram. It is available in the brand name of TR-WAX.