Determination of Polycyclic Aromatic Hydrocarbons (PAHs) and Sulfur, Nitrogen, and Oxygen Analogs in Fumes from Heated Asphalt by High-Performance Liquid Chromatography – Diode Array Detection (HPLC-DAD)

Abstract

Polycyclic aromatic hydrocarbons (PAHs), as well as their sulfur (S-PAHs), oxygen (O-PAHs), and nitrogen (N-PAHs) analogs were evaluated in the fumes of asphalt samples produced in Brazilian refineries. The fumes were generated using a laboratory-constructed device for extraction and collection (DEC). Two previously published methodologies for PAHs and S-PAHs evaluation by high-performance liquid chromatography with diode array detection (HPLC-DAD) were employed, together with a new methodology for O and N-PAHs. A total of 54 compounds were assessed. The samples included 31 compounds within the scope of this study, and the emissions were highly dependent upon the heating temperature and asphalt source.

Keywords:

• Asphalt emissions
• high-performance liquid chromatography – diode array detection (HPLC-DAD)
• polycyclic aromatic hydrocarbons (PAHs)
• S-O-N-PAHs

Disclosure statement

There are no conflicts of interest to declare.

Additional information

Funding

Authors are grateful to the financial support of Brazilian foundations CAPES and CNPq as well as PETROBRAS, through the Petrobras Development and Innovation Center (CENPES).