Systematic Study of the Influence of Modifiers on the CO2-Supercritical Extraction of PAHs in Soil
- Tena, M.T. 1
- Luque de Castro, M.D. 1
- Valcárcel, M. 1
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1
Universidad de Córdoba
info
ISSN: 0009-5893
Année de publication: 1994
Volumen: 38
Número: 7-8
Pages: 431-435
Type: Article
D'autres publications dans: Chromatographia
Résumé
An exhaustive study of the behaviour in supercritical fluid extraction of eight PAHs in real samples of soil compared to spiked samples in silica has been carried out. The presence of a modifier is mandatory for quantitative extraction of the native analytes, but is unnecessary in spiked samples. The type and volume of modifier to be added and the sample-modifier contact time were optimized and the influence of the particle size assessed. © 1994 Friedr. Vieweg & Sohn Verlagsgesellschaft mbH.