Produção Nacional
Análise de benzeno, tolueno, etilbenzeno e xilenos em solos por headspace e cromatografia gasosa/detector de ionização de chama
2006; UNIVERSIDADE ESTADUAL DE LONDRINA; Volume: 27; Issue: 2 Linguagem: Inglês
10.5433/1679-0375.2006v27n2p113
ISSN1679-0375
AutoresRafael Augusto Melquiades, Ilza Lobo, Carmen Luı́sa Barbosa Guedes, Jurandir Pereira Pinto,
Tópico(s)Toxic Organic Pollutants Impact
ResumoThe 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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