Análise de benzeno, tolueno, etilbenzeno e xilenos em solos por headspace e cromatografia gasosa/detector de ionização de chama

Rafael Augusto Melquiades; Ilza Lobo; Carmen Luísa Barbosa Guedes; Jurandir Pereira Pinto

doi:10.5433/1679-0375.2006v27n2p113

Analysis of benzene, toluene, ethylbenzene and xylenes in soils by headspace and gas chromatography/flame ionization detector

Authors

Rafael Augusto Melquiades Universidade Estadual de Londrina
Ilza Lobo Universidade Estadual de Londrina
Carmen Luísa Barbosa Guedes Universidade Estadual de Londrina
Jurandir Pereira Pinto Universidade Estadual de Londrina

DOI:

https://doi.org/10.5433/1679-0375.2006v27n2p113

Keywords:

BTEX, Headspace, GC/FID, Soil.

Abstract

The constituents of gasoline: benzene, toluene, ethylbenzene and xylenes (BTEX) are frequently found in soils due to leaks in fuel storage tanks and they present chronic toxicity. In this work it was developed and validated a methodology of BTEX analysis in soil by gas chromatography/ flame ionization detector and static headspace. The recovery of BTEX in soil samples was evaluated using soils with different textures (sandy and loamy). The analysis method showed good resolution, in a low time of analysis (less than 30 minutes). Limits of quantification of 0.05 mg Kg¯¹ soil for benzene, toluene, ethylbenzene and xylenes are below the guiding values that range from 0.15 to 95 mg Kg¯¹ soil, established to determine soil quality. It was verified that the methodology enables the use of this method for BTEX analysis of soil samples for passive environmental identification of gas stations.

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Author Biographies

Rafael Augusto Melquiades, Universidade Estadual de Londrina

Aluno do Curso de Química – UEL - Londrina.

Ilza Lobo, Universidade Estadual de Londrina

Docentes do Departamento de Química – CCE – Universidade Estadual de Londrina, Londrina.

Carmen Luísa Barbosa Guedes, Universidade Estadual de Londrina

Docentes do Departamento de Química – CCE – Universidade Estadual de Londrina, Londrina.

Jurandir Pereira Pinto, Universidade Estadual de Londrina

Técnico do Departamento de Química – CCE – Universidade Estadual de Londrina, Londrina.

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Published

2006-12-15

How to Cite

Melquiades, R. A., Lobo, I., Guedes, C. L. B., & Pinto, J. P. (2006). Analysis of benzene, toluene, ethylbenzene and xylenes in soils by headspace and gas chromatography/flame ionization detector. Semina: Ciências Exatas E Tecnológicas, 27(2), 113–120. https://doi.org/10.5433/1679-0375.2006v27n2p113

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Issue

Vol. 27 No. 2 (2006)

Section

Original Article

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