Detailed hydrocarbon analysis (DHA) using ASTM method D6729 and D6729 appendix X2.

Authors: Ed Connor, Dr.Sc, Peak Scientific, Glasgow UK & Joaquin Lubkowitz, PhD, Separation Systems, Florida, USA.

Detailed hydrocarbon analysis (DHA) is a separation technique used by a variety of laboratories involved in the petrochemical industry for analysis and identification of individual components as well as for bulk hydrocarbon characterisation of a particular sample. Bulk analysis looks at gasoline composition in terms of PONA components (Paraffins, Olefins, Naphthalenes and Aromatics) and other fuels in the C1-C13 range since this gives an indication of overall quality of the sample.