This application note describes a multi-residue method for polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs). The method was used to analyze 16 PAHs, 17 PCBs and 24 OCPs at different concentration levels in a single run. The results showed that the method is suitable for the analysis of these compounds.
The document details an analytical method to analyze 16 polycyclic aromatic hydrocarbons (PAHs), 17 polychlorinated biphenyls (PCBs), and 24 organochlorine pesticides (OCPs) in a single run. This approach is designed to improve productivity for environmental samples by reducing analysis time compared to performing separate analyses for each compound group.
The method utilizes GC/MS with the Agilent J&W FactorFour VF-5ms column, achieving separation of 57 compounds within 32 minutes. The note discusses specific challenges in separating certain peak pairs that have identical masses or difficult resolution using mass spectrometry alone, providing strategies for confirmation via Selected Ion Monitoring (SIM).
The VF-5ms column delivers a multi-residue analysis of PAHs, PCBs, and OCPs in 32 minutes.
The concentration of the PAHs was ten times higher than the concentration of PCBs and OCPs, with PAHs at 1 wg/mL and OCPs and PCBs at 0.1 yg/mL.
The carrier gas is Helium set to a constant flow of 1 mL/min.