Preconcentration of uranium in water samples using dispersive liquid-liquid micro- extraction coupled with solid-phase extraction and determination with inductively coupled plasma-optical emission spectrometry
A new liquid phase microextraction method based on the dispersion of an extraction solvent into aqueous phase coupled with solid-phase extraction was investigated for the extraction, preconcentration and determination of uranium in water samples. 1-(2-Pyridylazo)-2-naphthol reagent (PAN) at pH 6.0 w...
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| Format: | Article |
| Language: | English |
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Chemical Society of Ethiopia
2015-10-01
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| Series: | Bulletin of the Chemical Society of Ethiopia |
| Subjects: | |
| Online Access: | http://www.ajol.info/index.php/bcse/article/view/122946 |
| _version_ | 1811258827834654720 |
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| author | M. Rezaee, F. Khalilian |
| author_facet | M. Rezaee, F. Khalilian |
| author_sort | M. Rezaee, |
| collection | DOAJ |
| description | A new liquid phase microextraction method based on the dispersion of an extraction solvent into aqueous phase coupled with solid-phase extraction was investigated for the extraction, preconcentration and determination of uranium in water samples. 1-(2-Pyridylazo)-2-naphthol reagent (PAN) at pH 6.0 was used as a chelating agent prior to extraction. After concentration and purification of the samples in SPE C18 sorbent, 1.5 mL elution sample containing 40.0 µL chlorobenzene was injected into the 5.0 mL pure water. After extraction and centrifuging, the sedimented phase was evaporated and the residue was dissolved in nitric acid (0.5 M) and was injected by injection valve into the ICP-OES. Some important extraction parameters, such as sample solution flow rate, sample pH, type and volume of extraction and disperser solvents as well as the salt addition were studied and optimized. Under the optimum conditions, the calibration graph was linear in the range of 0.5-500 µg L-1. The detection limit was 0.1 µg L-1. The relative standard deviation (RSD) at 5.0 µg L-1 concentration level was 6.6%. Finally, the developed method was successfully applied to the extraction and determination of uranium in the well, river, mineral, waste and tap water samples and satisfactory results were obtained.DOI: http://dx.doi.org/10.4314/bcse.v29i3.4 |
| first_indexed | 2024-04-12T18:20:23Z |
| format | Article |
| id | doaj.art-25c5828ed86a49ba90dfe0cd8a6b648a |
| institution | Directory Open Access Journal |
| issn | 1011-3924 1726-801X |
| language | English |
| last_indexed | 2024-04-12T18:20:23Z |
| publishDate | 2015-10-01 |
| publisher | Chemical Society of Ethiopia |
| record_format | Article |
| series | Bulletin of the Chemical Society of Ethiopia |
| spelling | doaj.art-25c5828ed86a49ba90dfe0cd8a6b648a2022-12-22T03:21:27ZengChemical Society of EthiopiaBulletin of the Chemical Society of Ethiopia1011-39241726-801X2015-10-01293367376http://dx.doi.org/10.4314/bcse.v29i3.4Preconcentration of uranium in water samples using dispersive liquid-liquid micro- extraction coupled with solid-phase extraction and determination with inductively coupled plasma-optical emission spectrometryM. Rezaee, F. KhalilianA new liquid phase microextraction method based on the dispersion of an extraction solvent into aqueous phase coupled with solid-phase extraction was investigated for the extraction, preconcentration and determination of uranium in water samples. 1-(2-Pyridylazo)-2-naphthol reagent (PAN) at pH 6.0 was used as a chelating agent prior to extraction. After concentration and purification of the samples in SPE C18 sorbent, 1.5 mL elution sample containing 40.0 µL chlorobenzene was injected into the 5.0 mL pure water. After extraction and centrifuging, the sedimented phase was evaporated and the residue was dissolved in nitric acid (0.5 M) and was injected by injection valve into the ICP-OES. Some important extraction parameters, such as sample solution flow rate, sample pH, type and volume of extraction and disperser solvents as well as the salt addition were studied and optimized. Under the optimum conditions, the calibration graph was linear in the range of 0.5-500 µg L-1. The detection limit was 0.1 µg L-1. The relative standard deviation (RSD) at 5.0 µg L-1 concentration level was 6.6%. Finally, the developed method was successfully applied to the extraction and determination of uranium in the well, river, mineral, waste and tap water samples and satisfactory results were obtained.DOI: http://dx.doi.org/10.4314/bcse.v29i3.4http://www.ajol.info/index.php/bcse/article/view/122946Dispersive liquid-liquid microextractionSolid-phase extractionInductively coupled plasma-optical emission spectrometryUraniumWater samples |
| spellingShingle | M. Rezaee, F. Khalilian Preconcentration of uranium in water samples using dispersive liquid-liquid micro- extraction coupled with solid-phase extraction and determination with inductively coupled plasma-optical emission spectrometry Bulletin of the Chemical Society of Ethiopia Dispersive liquid-liquid microextraction Solid-phase extraction Inductively coupled plasma-optical emission spectrometry Uranium Water samples |
| title | Preconcentration of uranium in water samples using dispersive liquid-liquid micro- extraction coupled with solid-phase extraction and determination with inductively coupled plasma-optical emission spectrometry |
| title_full | Preconcentration of uranium in water samples using dispersive liquid-liquid micro- extraction coupled with solid-phase extraction and determination with inductively coupled plasma-optical emission spectrometry |
| title_fullStr | Preconcentration of uranium in water samples using dispersive liquid-liquid micro- extraction coupled with solid-phase extraction and determination with inductively coupled plasma-optical emission spectrometry |
| title_full_unstemmed | Preconcentration of uranium in water samples using dispersive liquid-liquid micro- extraction coupled with solid-phase extraction and determination with inductively coupled plasma-optical emission spectrometry |
| title_short | Preconcentration of uranium in water samples using dispersive liquid-liquid micro- extraction coupled with solid-phase extraction and determination with inductively coupled plasma-optical emission spectrometry |
| title_sort | preconcentration of uranium in water samples using dispersive liquid liquid micro extraction coupled with solid phase extraction and determination with inductively coupled plasma optical emission spectrometry |
| topic | Dispersive liquid-liquid microextraction Solid-phase extraction Inductively coupled plasma-optical emission spectrometry Uranium Water samples |
| url | http://www.ajol.info/index.php/bcse/article/view/122946 |
| work_keys_str_mv | AT mrezaee preconcentrationofuraniuminwatersamplesusingdispersiveliquidliquidmicroextractioncoupledwithsolidphaseextractionanddeterminationwithinductivelycoupledplasmaopticalemissionspectrometry AT fkhalilian preconcentrationofuraniuminwatersamplesusingdispersiveliquidliquidmicroextractioncoupledwithsolidphaseextractionanddeterminationwithinductivelycoupledplasmaopticalemissionspectrometry |