Optimization of gas chromatography using short glass capillary column with mass spectrometry for identification and evaluation of commercial heavy alkylbenzene structures

Heavy alkylbenzene (HAB) is one of the by-products when producing linear alkylbenzene (LAB). Identification of the fine structures of HAB is difficult because of its complex structure and high boiling point. The gas chromatography/mass spectrometry (GC/MS) technique with a short glass capillary column is the best method applicable to analysis of high-boiling and thermally labile compounds. The column efficiency is evaluated on the basis of Van Deemter curves.