Virtual Issue: Chromatographic Separations and Sample Extractions for Polycyclic Aromatic Hydrocarbons

Walter B. Wilson © AuthorPolycyclic aromatic hydrocarbons (PAHs) represent a diverse class of environmentally important chemical pollutants with potential mutagenic and carcinogenic properties. PAHs are highly researched in the literature with almost 60,000 publications through Web of Science dating back to 1911. PAHs have been identified in a wide range of environmental and combustion-related samples such as water, sediments, air particulate, coal tar, crude oil, and diesel particulate samples. Among the greatest challenges in the determination of PAHs in these samples are the complexity of the natural matrix material and the multitude of isomeric structures. Since the late 1970s, PAHs are typically quantified in these samples by a single chromatographic technique such as reversed-phase liquid chromatography (RPLC) with absorbance or fluorescence detection and gas chromatography coupled to mass spectrometry. In addition, sample extraction and clean-up methods have continuously evolved for PAH analysis to include normal phase LC, liquid-liquid extraction, Soxhlet extraction, supercritical fluid extraction, pressurized fluid extraction, microwave-assisted extraction, solid-phase extraction, and solid-phase microextraction. In the past decade, improvements in PAH analysis have focused on developing highly efficient, selective, sensitive, reproducible, and green analytical methods. The seven original papers presented in this Virtue Issue on Chromatographic Separations and Sample Extractions for Polycyclic Aromatic Hydrocarbons highlight some of the diverse work published in CHROMATOGRAPHIA during the last two calendar years in the area of PAH research. We expect contributions to the journal in these areas to continue to grow and welcome your submissions.

Walter B. Wilson
Chemical Sciences Division, Materials Measurements Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA

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Walter B. Wilson, Stephen A. Wise, Lane C. Sander
Development of a reversed-phase liquid chromatography and fluorescence method with multichannel selective wavelength detection for the determination of benzo[a]pyrene and six of its isomers

Jorge O. Oña-Ruales, Yosadara Ruiz-Morales, Fernando Alvarez-Ramírez, Walter B. Wilson, Stephen A. Wise
The influence of aromaticity in gas chromatography retention: the case of polycyclic aromatic sulfur heterocycles

Bing Wang, Jingchen Liu, Xu Li, Bo Wu
Synthesis and applications of a novel 3,4-bis(2-fluoro-5-trifluoromethyl phenyl)-2,5-diphenyl phenyl grafted polysiloxane stationary phase

Jingchen Liu, Li Xu, Jianchun Bai, Aiqin Du, Bo Wu
Ethyl carbazole-grafted polysiloxane as stationary phase for gas chromatography

Najmeh Yazdanfar, Mojtaba Shamsipur, Mahnaz Ghambarian, Ali Esrafili
A highly sensitive dispersive microextraction method with magnetic carbon nanocomposites coupled with dispersive liquid-liquid microextraction and two miscible stripping solvents followed by GC-MS for quantification of 16 PAHs in environmental samples

Jiaqing Feng, Min Sun, Xiuqin Wang, Yu Tian, Chuannan Luo, Juanjuan Feng
Barium sulfate nanoparticles as a coating for solid-phase microextraction of polycyclic aromatic hydrocarbons in aqueous samples

Yu Tian, Min Sun, Xiuqin Wang, Chuannan Luo, Juanjuan Feng
A nanospherical metal-organic framework UiO-66 for solid-phase microextraction of polycyclic aromatic hydrocarbons