Gas Chromatographic analysis of acid gases and single/mixed alkanolamines

A gas Chromatographic (GC) technique is presented for the analysis of acid gases, alkanolamines and their degradation products in solution. The GC technique uses a Tenax GC column with a thermal conductivity detector. This simple and reliable GC technique can determine acid gases, alkanolamines and water in the solvent by a single sample injection and requires less time as compared to other existing analytical methods. The acid gases used in this study are CO₂ and H₂S and the alkanolamines used are monoethanolamine, methyldiethanolamine, 2-amino-2-methyl-1-propanol, diethanolamine and their degradation samples. This method has been compared to conventional techniques and the advantages of the GC technique have been demonstrated.