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Multivariate optimization of a solid phase microextraction-headspace procedure for the determination of benzene, toluene, ethylbenzene and xylenes in effluent samples from a waste treatment plant.
J Chromatogr A. 2008 Aug 29; 1203(1):99-104.JC

Abstract

A method based on solid-phase microextraction (SPME) and gas chromatography with flame ionization detection (GC-FID) has been optimized for the determination of benzene, toluene, ethylbenzene and xylenes (BTEX) in water released from a waste treatment plant. The extraction step was optimized using fractional factorial and central composite designs including the following experimental factors: saline concentration; extraction time; desorption time; agitation velocity; headspace volume. A multiple function was used to describe the experimental conditions for simultaneous extraction of the compounds. The procedure, based on direct SPME at 50 degrees C, using a polydimethylsiloxane fiber, showed good linearity (r>0.997 over a concentration range 2-200 microg L(-1)) and repeatability (relative standard deviation (RSD)<4.23%) for all compounds, with limits of detection ranging from 0.05 to 0.28 microg L(-1), and limits of quantification ranging from 0.14 to 0.84 microg L(-1). Concentrations of the target compounds in these samples were between 145.8 and 1891 microg L(-1).

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Authors+Show Affiliations

Gaujac A
Escola Agrotécnica Federal de São Cristóvão, 49100-000 São Cristóvão, SE, Brazil.
Emídio ES
No affiliation info available
Navickiene S
No affiliation info available
Ferreira SL
No affiliation info available
Dórea HS
No affiliation info available

MeSH

BenzeneBenzene DerivativesChromatography, GasMultivariate AnalysisReproducibility of ResultsSolid Phase MicroextractionTolueneUncertaintyWaste Disposal, FluidWater Pollutants, ChemicalXylenes

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Validation Study

Language

eng

PubMed ID

18657817

Citation

Gaujac, Alain, et al. "Multivariate Optimization of a Solid Phase Microextraction-headspace Procedure for the Determination of Benzene, Toluene, Ethylbenzene and Xylenes in Effluent Samples From a Waste Treatment Plant." Journal of Chromatography. A, vol. 1203, no. 1, 2008, pp. 99-104.
Gaujac A, Emídio ES, Navickiene S, et al. Multivariate optimization of a solid phase microextraction-headspace procedure for the determination of benzene, toluene, ethylbenzene and xylenes in effluent samples from a waste treatment plant. J Chromatogr A. 2008;1203(1):99-104.
Gaujac, A., Emídio, E. S., Navickiene, S., Ferreira, S. L., & Dórea, H. S. (2008). Multivariate optimization of a solid phase microextraction-headspace procedure for the determination of benzene, toluene, ethylbenzene and xylenes in effluent samples from a waste treatment plant. Journal of Chromatography. A, 1203(1), 99-104. https://doi.org/10.1016/j.chroma.2008.06.022
Gaujac A, et al. Multivariate Optimization of a Solid Phase Microextraction-headspace Procedure for the Determination of Benzene, Toluene, Ethylbenzene and Xylenes in Effluent Samples From a Waste Treatment Plant. J Chromatogr A. 2008 Aug 29;1203(1):99-104. PubMed PMID: 18657817.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Multivariate optimization of a solid phase microextraction-headspace procedure for the determination of benzene, toluene, ethylbenzene and xylenes in effluent samples from a waste treatment plant. AU - Gaujac,Alain, AU - Emídio,Elissandro Soares, AU - Navickiene,Sandro, AU - Ferreira,Sérgio Luis Costa, AU - Dórea,Haroldo Silveira, Y1 - 2008/06/22/ PY - 2008/01/28/received PY - 2008/05/29/revised PY - 2008/06/11/accepted PY - 2008/7/29/pubmed PY - 2008/10/15/medline PY - 2008/7/29/entrez SP - 99 EP - 104 JF - Journal of chromatography. A JO - J Chromatogr A VL - 1203 IS - 1 N2 - A method based on solid-phase microextraction (SPME) and gas chromatography with flame ionization detection (GC-FID) has been optimized for the determination of benzene, toluene, ethylbenzene and xylenes (BTEX) in water released from a waste treatment plant. The extraction step was optimized using fractional factorial and central composite designs including the following experimental factors: saline concentration; extraction time; desorption time; agitation velocity; headspace volume. A multiple function was used to describe the experimental conditions for simultaneous extraction of the compounds. The procedure, based on direct SPME at 50 degrees C, using a polydimethylsiloxane fiber, showed good linearity (r>0.997 over a concentration range 2-200 microg L(-1)) and repeatability (relative standard deviation (RSD)<4.23%) for all compounds, with limits of detection ranging from 0.05 to 0.28 microg L(-1), and limits of quantification ranging from 0.14 to 0.84 microg L(-1). Concentrations of the target compounds in these samples were between 145.8 and 1891 microg L(-1). SN - 0021-9673 UR - https://www.unboundmedicine.com/medline/citation/18657817/Multivariate_optimization_of_a_solid_phase_microextraction_headspace_procedure_for_the_determination_of_benzene_toluene_ethylbenzene_and_xylenes_in_effluent_samples_from_a_waste_treatment_plant_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0021-9673(08)01038-8 DB - PRIME DP - Unbound Medicine ER -

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