Dispersive liquid–liquid micro extraction of uranium(vi) from groundwater and seawater samples and determination by inductively coupled plasma–optical emission spectrometry and flow injection–inductively coupled plasma mass spectrometry

Chandrasekaran, K.; Karunasagar, D.; Arunachalam, J.

doi:10.1039/c1ay05329a

Cited by 72 publications

(27 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…± SD (n = 3) U 2.68 ± 0.12 2.63± 0.15 Table 6 compare the proposed method with the other extraction methods for the determination of the target analyte in water samples. The quantitative results of the proposed method are better than of solid phase extraction [10,34] and DLLME [35]. The comparison of extraction time of the proposed method with cloud-point extraction [33] for the extraction of the target analyte indicates that this method has a short extraction time.…”

Section: Analysis Of Real Samplesmentioning

confidence: 80%

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

Rezaee¹,

Khalilian²

2015

Bull. Chem. Soc. Eth.

View full text Add to dashboard Cite

ABSTRACT.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 . 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.

show abstract

Section: Analysis Of Real Samplesmentioning

confidence: 80%

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

Rezaee¹,

Khalilian²

2015

Bull. Chem. Soc. Eth.

View full text Add to dashboard Cite

show abstract

“…These include inductively coupled plasma–optical emission spectrometry (Sun and Wu 2011; Chandrasekaran et al 2011); inductively coupled plasma–mass spectrometry (Takata et al 2011; Krishna and Arunachalam 2004); atomic absorption spectrometry (Zhang and Adeloju 2008; Kumar et al 2001); and numerous stripping procedures such as potentiometric stripping analysis (Gadhari et al 2010; Wang et al 1984), anodic stripping voltammetry (Huang 2004; Pournaghi-Azar et al 2010) and, most of all, adsorptive stripping voltammetry (AdSV) (Hajian and Shams 2003; Gholivand and Romiani 2006a, b; Khaloo et al 2007; Shams 2001; Babaei et al 2006; Novotný et al 2003; Lin et al 2005; Kefala et al 2006; Piech et al 2007; Korolczuk et al 2007; Kadi and El-Shahawi 2009; Abbasi et al 2008). Such a keen demand for adsorptive stripping procedures lies in the capabilities they offer, such as low cost and portable instrumentation, a low detection limit and the possibility of the simultaneous determination of a few elements.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous quantification of Bi(III) and U(VI) in environmental water samples with a complicated matrix containing organic compounds

Grabarczyk

Koper

2012

Environ Monit Assess

View full text Add to dashboard Cite

Trace amounts of bismuth(III) and uranium(VI) can be simultaneously determined in a single scan by adsorptive cathodic stripping voltammetry in the presence of cupferron as a complexing agent. Optimal conditions were found to be: 0.1 mol L−1 acetate buffer (pH 5.3), 5 × 10−5 mol L−1 cupferron, accumulation potential of −0.25 V, and accumulation time of 30 s. The linear range of Bi(III) and U(VI) was observed over the concentration range from 2 × 10−9 to 2 × 10−7 mol L−1 and from 1 × 10−8 to 5 × 10−7 mol L−1, respectively. The influence of the main components of real water samples such as foreign ions and organic substances (surface active substances, humic substances) was precisely investigated. The method was applied to the simultaneous measurements of bismuth and uranium in natural water samples.

show abstract

“…Various preconcentration analytical techniques such as solvent extraction, 17 solid-phase extraction (SPE), 18 cloud-point extraction (CPE), 19 and dispersive liquid-liquid microextraction (DLLME) 20 have been employed for the extraction and measurement of U(VI) from aqueous and soil samples. 21 Among all these preconcentration techniques, liquid-liquid microextraction is superior to the others because it has certain advantages such as being faster and cheaper and there is no need for special synthesis and characterization as in SPE.…”

Section: 6mentioning

confidence: 99%

Supramolecular solvent microextraction of uranium at trace levels from water and soil samples

Khan¹,

Yılmaz²,

Soylak³

2017

Turk J Chem

View full text Add to dashboard Cite

Abstract:A supramolecular solvent microextraction procedure was established for the separation/preconcentration of uranium(VI) (U(VI)) prior to its determination by UV-Vis spectrophotometry. 1-(2-Pyridylazo)-2-naphthol (PAN) was used to form a red chelate (U-PAN) with U(VI) at pH 10. U-PAN was extracted by undecanol in tetrahydrofuran. All the parameters that affect extraction efficiency like solution pH, amount of ligand, type and volume of supramolecular solvent, sample volume, and diverse ion effect were optimized. The preconcentration factor was 17. The detection limit was 0.31 µ g L −1 . The method was validated using GBW07424 (GSS-10 certified reference material). Microextraction was also applied to water and soil samples.

show abstract

Dispersive liquid–liquid micro extraction of uranium(vi) from groundwater and seawater samples and determination by inductively coupled plasma–optical emission spectrometry and flow injection–inductively coupled plasma mass spectrometry

Cited by 72 publications

References 21 publications

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

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

Simultaneous quantification of Bi(III) and U(VI) in environmental water samples with a complicated matrix containing organic compounds

Supramolecular solvent microextraction of uranium at trace levels from water and soil samples

Contact Info

Product

Resources

About