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Selective Extraction of Organic Contaminants from Soil Using Pressurised Liquid Extraction
Joint Authors
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-08-30
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
This study focuses on the application of sorbents in pressurised liquid extraction (PLE) cell to establish a selective extraction of a variety of organic contaminants (polycyclic aromatic hydrocarbons (PAHs), chlorpyrifos, phenol, pentachlorophenol, and sterols) from soil.
The selectivity and efficiency of each sorbent depend on the properties of the material, extracting solvent, capacity factor, organic compounds of interest, and PLE operating parameters (temperature, pressure, and extraction time).
Several sorbents (silica, alumina, and Florisil) were evaluated and with the proper choice of solvents, polar and nonpolar compounds were successfully separated in two fractions.
Nonpolar compounds (PAHs, chlorpyrifos, and pentachlorophenol) were recovered in the first fraction using a polar sorbent such as Florisil or alumina, and n-hexane as eluting solvent, while more polar compounds (phenol and sterols) were recovered in the second fraction using methanol.
Silica (5 g) was found to be effective for selective extraction with the satisfactory recoveries for all compounds (PAHs from 87.1–96.2%, chlorpyrifos 102.9%, sterols from 93.7–100.5%, phenol 91.9%, and pentachlorophenol 106.2%).
The efficiency and precision of this extraction approach and the existing EPA Method 3545 were compared.
American Psychological Association (APA)
Osman, Rozita& Saim, Norashikin. 2012. Selective Extraction of Organic Contaminants from Soil Using Pressurised Liquid Extraction. Journal of Chemistry،Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-465508
Modern Language Association (MLA)
Osman, Rozita& Saim, Norashikin. Selective Extraction of Organic Contaminants from Soil Using Pressurised Liquid Extraction. Journal of Chemistry No. 2013 (2013), pp.1-8.
https://search.emarefa.net/detail/BIM-465508
American Medical Association (AMA)
Osman, Rozita& Saim, Norashikin. Selective Extraction of Organic Contaminants from Soil Using Pressurised Liquid Extraction. Journal of Chemistry. 2012. Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-465508
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-465508