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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).

Authors+Show Affiliations

Escola Agrotécnica Federal de São Cristóvão, 49100-000 São Cristóvão, SE, Brazil.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

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 -