Arefnejad, Esmat (2014) Extraction of n-Alkanes (C8-C20) from Soil Samples by Dispersive Liquid-Liquid Microextraction and Gas Chromatography. Masters thesis, University of Zabol.
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Extraction of n-Alkanes (C8-C20) from Soil Samples by Dispersive Liquid-Liquid.pdf Download (151kB) | Preview |
Abstract
In this study, chitosan-zinc oxide nanoparticles was used as solid-phase dispersion combining with dispersive liquid-liquid micro extraction for the determination of thirteen n-alkanes such as C8H18 to C20H42 in soil samples. The solid samples were directly blended with chitosan - nanoparticles in solid-phase dispersion method. The eluent of solid-phase dispersion was applied as the dispersive solvent dispersive liquid-liquid micro extraction. The compounds were used gas chromatography-flame ionization detector analysis. The optimized conditions were 200 μL of extracting solvent volume, 2 mL dispersive solvent volume, an extraction time of 2 min, 1mol L-1 of solt and the ratio of sample: sorbent up to 1:2. Under the optimum conditions detection limits between 0.08 to 2.5 ngg-1 and good linearity with correlation coefficients in the range 0.9991- 0.9995 were achieved. The presented procedure was combined the advantages of chitosan-zinc oxide nanoparticles, solid-phase dispersion and dispersive liquid-liquid micro extraction, and could be applied for the determination of n-alkanes in complicated soil samples.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | n-Alkanes; Solid-phase dispersion; Dispersive liquid-liquid micro extraction; Soil samples |
| Subjects: | Q Science > QD Chemistry |
| Depositing User: | admin admin1 admin2 |
| Date Deposited: | 25 Jun 2016 06:15 |
| Last Modified: | 25 Jun 2016 06:15 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/854 |
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