Method Validation for SPE Applied to Determination of PAH in Petroliferous Industry Effluent Water
José Ricardo Lima Bispo, Sandro Navickiene, Haroldo Silveira Dórea
DOI: 10.4236/ajac.2011.28113   PDF   HTML     6,262 Downloads   11,021 Views   Citations


The presence of polycyclic aromatic hydrocarbons (PAH) in produced water is of environmental concern due to their toxic properties. PAH analysis in complex samples requires pre-treatment to enrich the fraction con- taining analytes, and eliminate matrix interferences. The objective of this work was to develop and validate an analytical methodology for determination of PAH in produced water, using solid phase extraction (SPE) and analysis by gas chromatography with flame ionization detection (GC-FID). Average recoveries of PAH from produced water enriched at two concentration levels varied from 30.9% for naphthalene to 119.1% for chrysene (RSD between 3.8% and 22.2%). The linear range was between 0.5 and 50.0 µg?mL–1, with regres- sion coefficients better than 0.998. Detection limits were between 0.01 and 0.04 µg?L–1, and quantitation lim- its were between 0.05 and 0.16 µg?L–1. The validated method was applied to samples of produced water treated for disposal, in which concentrations varied from 3.5 µg?L–1 for phenanthrene to 44.3 µg?L–1 for naphthalene ( = 177.7 μg?L–1). The method was also applied to seawater samples, in which 13 PAH compounds were detected ( = 60.27 μg?L–1), probably derived from pyrogenic sources.

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J. Bispo, S. Navickiene and H. Dórea, "Method Validation for SPE Applied to Determination of PAH in Petroliferous Industry Effluent Water," American Journal of Analytical Chemistry, Vol. 2 No. 8, 2011, pp. 971-978. doi: 10.4236/ajac.2011.28113.

Conflicts of Interest

The authors declare no conflicts of interest.


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