Document Type

Journal Article

Department/Unit

Department of Chemistry

Title

On-line flow injection-cloud point preconcentration of polycyclic aromatic hydrocarbons coupled with high-performance liquid chromatography

Language

English

Abstract

Cloud point methodology has been used to develop a novel preconcentration and an analytical method for polycyclic aromatic hydrocarbons (PAHs) in soil sample. The nonionic surfactant Tergitol 15-S-7 was successfully used as the surfactant-mediated extractant in both ultrasonic and microwave-assisted extractions. Over 90% of recoveries for various PAHs in soil were obtained under the optimal experimental conditions. The extracts were then preconcentrated and analyzed by our proposed on-line coupling method "flow injection-cloud point preconcentration-high-performance liquid chromatography" (FI-CPP-HPLC) equipped with a fluorescence detector and an excitation/emission wavelength program. The preconcentration system and optimal working conditions were established. The limit of detection of the FI-CPE-HPLC system ranges from 0.101 to 0.456 μg/L for the selected PAHs, i.e., phenanthrene, pyrene, chrysene, benzo[k]fluoranthene and benzo[a]pyrene. Our proposed technique provides a reliable, simple and automatic analytical method for the determination of PAHs in environmental soil samples. © 2008 Elsevier B.V. All rights reserved.

Keywords

Cloud point extraction, Polycyclic aromatic hydrocarbons, Preconcentration, Soil

Publication Date

2008

Source Publication Title

Journal of Chromatography A

Volume

1214

Issue

2-1

Start Page

11

End Page

16

Publisher

Elsevier

DOI

10.1016/j.chroma.2008.10.062

ISSN (print)

00219673

ISSN (electronic)

18733778

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