Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/2041
Título: Determination of total petroleum hydrocarbons in soil from different locations using infrared spectrophotometry and gas chromatography
Autor: Paíga, Paula
Mendes, Lurdes
Albergaria, José Tomás
Delerue-Matos, Cristina
Palavras-chave: Total petroleum hydrocarbons
Soil
Infrared spectrophotometry
Gas chromatography
Data: 2012
Editora: Springer Verlag
Relatório da Série N.º: Chemical Papers; Vol. 66, Issue 8
Resumo: Total petroleum hydrocarbons (TPH) are important environmental contaminants which are toxic to human and environmental receptors. Several analytical methods have been used to quantify TPH levels in contaminated soils, specifically through infrared spectrometry (IR) and gas chromatography (GC). Despite being two of the most used techniques, some issues remain that have been inadequately studied: a) applicability of both techniques to soils contaminated with two distinct types of fuel (petrol and diesel), b) influence of the soil natural organic matter content on the results achieved by various analytical methods, and c) evaluation of the performance of both techniques in analyses of soils with different levels of contamination (presumably non-contaminated and potentially contaminated). The main objectives of this work were to answer these questions and to provide more complete information about the potentials and limitations of GC and IR techniques. The results led us to the following conclusions: a) IR analysis of soils contaminated with petrol is not suitable due to volatilisation losses, b) there is a significant influence of organic matter in IR analysis, and c) both techniques demonstrated the capacity to accurately quantify TPH in soils, irrespective of their contamination levels.
Peer review: yes
URI: http://hdl.handle.net/10400.22/2041
ISSN: 0366-6352
Versão do Editor: http://link.springer.com/article/10.2478%2Fs11696-012-0193-8
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