Ahmar, H and Rameshgar, J (2016) Application of N,N-dipropylamine as switchable hydrophilicity solvent for homogeneous liquid-liquid microextraction of nitroaromatic compounds from water samples. Masters thesis, university of zabol.
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Abstract
Abstract In this study, a novel CO2-assisted liquid phase microextraction (LPME) based on switchable hydrophilicity solvents (SHS) which called (SHS-LPME) was applied for preconcentration of 4-mononitrotoluene, 2,4-dinitrotoluene and 2,6-dinitrotoluene in water samples. Mixture of DPA and water (1:1) in the presence of CO2 was used as extractant solvent. Protonated DPA was helped to transition of analytes from aqueous phase to organic phase. NaOH solution was added to homogenous solution for separation of two phases. Extraction parameters affecting the microextraction efficiency were optimized that under optimized conditions, detection limit and preconcentration factor were obtained in the ranges of 0.9-1.8ng/mL and 132-138, respectively. Finally the developed method was successfully applied to determination of nitro aromatic compounds in water samples.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Homogeneous liquid-liquid microextraction, Switchable hydrophilicity solvent, Mono and dinitro toluenes, Gas chromatography |
| Subjects: | Q Science > QD Chemistry |
| Depositing User: | admin admin1 admin2 |
| Date Deposited: | 16 May 2018 06:38 |
| Last Modified: | 16 May 2018 06:38 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/1783 |
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