EurekaMag
+ Translate
+ Most Popular
The pigeon tick (Argas reflexus): its biology, ecology, and epidemiological aspects
Prevalence of hemoglobin abnormalities in Kebili (Tunisian South)
Lipogranuloma: a preventable complication of dacryocystorhinostomy
Value of basal plasma cortisol assays in the assessment of pituitary-adrenal insufficiency
Bees from the Belgian Congo. The acraensis group of Anthophora
Placing gingival retraction cord
Total serum IgE, allergy skin testing, and the radioallergosorbent test for the diagnosis of allergy in asthmatic children
Acariens plumicoles Analgesoidea parasites des oiseaux du Maroc
Injuries of terminal phalanges of the fingers in children
Biology of flowering and nectar production in pear (Pyrus communis)
Das Reliktvorkommen der Aspisviper (Vipera aspis L.) im Schwarzwald
Hydrological modelling of drained blanket peatland
Pathologic morphology and clinical significance of the anomalous origin of the left circumflex coronary artery from the right coronary artery. General review and autopsy analysis of 30 cases
Cyto genetic analyses of lymphocyte cultures after exposure to calcium cyclamate
Axelrodia riesei, a new characoid fish from Upper Rio Meta in Colombia With remarks concerning the genus Axelrodia and description of a similar, sympatric, Hyphessobrycon-species
Favorable evolution of a case of tuberculosis of pancreas under antibiotic action
RIFM fragrance ingredient safety assessment, Valencene, CAS Registry Number 4630-07-3
Parenteral microemulsions: an overview
Temperate pasture: management for grazing and conservation
Evaluation of a new coprocessed compound based on lactose and maize starch for tablet formulation
Thermal expansion and cracking of three confined water-saturated igneous rocks to 800C
Revision of the genera of the tribe Stigmoderini (Coleoptera: Buprestidae) a discussion of phylogenetic relationships
Anal tuberculosis. Report of a case
Gastric tuberculosis in the past and present
Adaptive responses of the cardiovascular system to prolonged spaceflight conditions: assessment with Holter monitoring

Comparison of sorbent and solvent trapping after supercritical fluid extraction of volatile petroleum hydrocarbons from soil


Comparison of sorbent and solvent trapping after supercritical fluid extraction of volatile petroleum hydrocarbons from soil



Journal of Chromatography A 699(1-2): 265-276



ISSN/ISBN: 0021-9673

DOI: 10.1016/0021-9673(95)00065-u

Supercritical fluid extraction (SFE) with sorbent and solvent traps was used for extracting total petroleum hydrocarbons (TPH) from real-world soil samples contaminated with gasoline- or diesel-range hydrocarbons. Quantitative extractions using two SFE systems were performed at 80°C and 340 atm with a flow-rate of 1.5 ml/min. Both sorbent and solvent trapping could effectively (90%) collect BTEX (benzene, toluene, ethylbenzene, and xylenes). Sorbent trapping yielded quantitative collections (88%) of n-alkanes as volatile as n-hexane, while the solvent trapping effectively collected n-alkanes as volatile as n-heptane (pressurized trapping system) or n-octane (normal trapping system). The quantitation of BTEX, TPH, and individual species from contaminated soils obtained by the two SFE systems agreed well. Because of the greater losses of BTEX and volatile n-alkanes, Soxhlet extraction yielded significantly lower BTEX, TPH, and individual species values than SFE.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 015330689

Download citation: RISBibTeXText

Related references

Solvent trapping of some chlorinated hydrocarbons after supercritical fluid extraction from soil. Analytical Chemistry 66(21): 3581-3586, 1994

A solvent recirculation trapping device for supercritical fluid extraction of polyaromatic hydrocarbons. Journal of Separation Science 28(11): 1188-1194, 2005

Extraction of polycyclic aromatic hydrocarbons from contaminated soil using Soxhlet extraction, pressurised and atmospheric microwave-assisted extraction, supercritical fluid extraction and accelerated solvent extraction. Journal of Chromatography A 791(1-2): 361-366, 1997

Extraction of polycyclic aromatic hydrocarbons from soils: a comparison between focused microwave assisted extraction, supercritical fluid extraction, subcritical solvent extraction, sonication and soxhlet techniques. International Journal of Environmental Analytical Chemistry 73(3): 191-210, 1999

Supercritical fluid extraction for the determination of petroleum hydrocarbons in soil. Journal of Chromatography A 845(1-2): 357-363, 1999

Supercritical fluid extraction for the determination of petroleum hydrocarbons in soil. Isc'98 International Symposium on Chromatography 845(1-2): 357-363, 1999

Analysis of volatile organics by supercritical fluid extraction coupled to gas chromatography II Quantitation of petroleum hydrocarbons from environmental sample. Journal of Chromatography A 685(1): 95-111, 1994

Comprehensive comparison of classic Soxhlet extraction with Soxtec extraction, ultrasonication extraction, supercritical fluid extraction, microwave assisted extraction and accelerated solvent extraction for the determination of polychlorinated biphenyls in soil. Journal of Chromatography A 1090(1-2): 1-9, 2005

Supercritical fluid extraction with carbon dioxide for the determination of total petroleum hydrocarbons in soil. Fuel 72(7): 1015-1023, 1993

Comparison of solid-phase microextraction, supercritical fluid extraction, steam distillation, and solvent extraction techniques for analysis of volatile consituents in Fructus Amomi. Journal of Aoac International 88(2): 418-423, 2005

Determination of total petroleum hydrocarbons in soil by dynamic on-line supercritical fluid extraction with infrared photometric detection. Journal of Chromatography A 986(2): 319-325, 2003

Practicality of Supercritical Fluid Extraction/Ir for the Measurement of Petroleum Hydrocarbons in Aged Soil: A Comparative Study Between Two Commercial Extractors. International Journal of Environmental and Analytical Chemistry 66(4): 299-311, 1997

Nordic laboratory intercomparison of supercritical fluid extraction for the determination of total petroleum hydrocarbon, polychlorinated biphenyls and polycyclic aromatic hydrocarbons in soil. Journal of Chromatography A 958(1-2): 239-248, 2002

Comparison of Soxhlet, accelerated solvent and supercritical fluid extraction techniques for volatile (GC-MS and GC/FID) and phenolic compounds (HPLC-ESI/MS/MS) from Lamiaceae species. Phytochemical Analysis: Pca 26(1): 61-71, 2015

Determination of total petroleum hydrocarbons in soil by on-line supercritical fluid extraction-infrared spectroscopy using a fiberoptic transmission cell and a simple filter spectrometer. Journal of Chromatography A 785(1-2): 269-277, 1997