Development of an on-line temperature-assisted ionic liquid dispersive microextraction system for sensitive determination of vanadium in environmental and biological samples

Bertón, Paula; Martinis, Estefanía Mabel; Wuilloud, Rodolfo G.

doi:10.1016/j.jhazmat.2009.11.094

Cited by 83 publications

(49 citation statements)

References 37 publications

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“…In comparison with the high cost techniques [3][4][5][6][7][8][9][10][11] for vanadium determination, the present paper describes a very simple, selective, and highly sensitive method for the determination of up to 0.60 lg dm -3 V with a detection limit of 0.011 lg dm -3 using a simple spectrophotometer. The method does not require any prior separation or preconcentration steps and was directly applied to the determination of trace levels of vanadium in rain water, rice, and wheat samples.…”

Section: Resultsmentioning

confidence: 99%

“…The method does not require any prior separation or preconcentration steps and was directly applied to the determination of trace levels of vanadium in rain water, rice, and wheat samples. The advantageous sensitivity and selectivity make the proposed method favorably competitive with the high cost methods for vanadium determination [3][4][5][6][7][8][9][10][11], the standard gallic acid-persulfate method [39], and the previously published catalytic-spectrophotometric methods (Table 1).…”

Section: Resultsmentioning

confidence: 99%

“…Based on in vitro and in vivo studies, the International Agency for Research on Cancer (IARC) has classified vanadium as a possible carcinogen (group 2B) [1,2]. Therefore, ultra trace determination of vanadium has attracted the attention of many researchers, and a variety of analytical techniques have been used including inductively coupled plasma-mass spectrometry (ICP-MS) [3][4][5], inductively coupled plasma-optical emission spectrometry (ICP-OES) [6][7][8], and electrothermal atomic absorption spectrometry (ETAAS) [9][10][11], with typical detection limits of 0.02-5 [3][4][5], 0.016-13.3 [6][7][8], and 0.11-4.8 [9][10][11] lg dm -3 , respectively. However, the need for preconcentration and/or separation and the relatively high instrumental and/or operational costs are common disadvantages [3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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Highly sensitive kinetic spectrophotometric determination of vanadium based on the oxidation of 2,3,4-trihydroxybenzoic acid with bromate

et al. 2011

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A novel, highly sensitive, simple, and selective kinetic method was developed for the determination of vanadium based on its catalytic effect on the oxidation of 2,3,4-trihydroxybenzoic acid with bromate. The reaction was followed spectrophotometrically by tracing the oxidized product at 412 nm after 30 min of mixing the reagents. The optimum reaction conditions were 1.8 mmol dm -3 trihydroxybenzoic acid, 60 mmol dm -3 bromate, and 50 mmol dm -3 dichloroacetate buffer of pH 1.50 ± 0.02 at 30°C. Addition of 5 mmol dm -3 citric acid enhanced the selectivity of the proposed method. Following the recommended procedure, vanadium [(V) and (IV)] can be determined with a linear calibration graph up to 0.60 lg dm -3 and a detection limit, based on the 3S b criterion, of 0.011 lg dm -3 . The high sensitivity and selectivity of the proposed method allowed its direct application to the determination of vanadium [(V) and (IV)] in rain water, rice, and wheat samples. The method was validated by comparison with a reference extraction ICP-OES method along with recovery experiments. Moreover, published catalytic-spectrophotometric methods for the determination of vanadium from the past decade were reviewed.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Highly sensitive kinetic spectrophotometric determination of vanadium based on the oxidation of 2,3,4-trihydroxybenzoic acid with bromate

et al. 2011

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“…DLLME using ILs as the extractant solvents has been successfully explored to extract dichlorodiphenyltrichloroethane and its metabolites [15], aromatic compounds [24], phenols [25], aromatic amines [26], heterocyclic insecticides [27], vanadium [28], chloro-containing pesticides [29] from environmental waters and lanthanoids from uranium dioxide powder [16]. Considering the satisfactory behavior of IL-DLLME in environmental analysis, two ILs, [ 6 has high viscosity, which led to inconvenient operation.…”

Section: Selection Of Ilmentioning

confidence: 99%

Orthogonal array design for the optimization of ionic liquid‐based dispersive liquid–liquid microextraction of benzophenone‐type UV filters

Liu

Yang

et al. 2011

J of Separation Science

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In the present study, dispersive liquid-liquid microextraction (DLLME) using an ionic liquid (IL) as the extractant was successfully developed to extract four benzophenone-type UV filters from the different water matrices. Orthogonal array experimental design (OAD), based on five factors and four levels (L(16)(4(5))), was employed to optimize IL-dispersive liquid-liquid microextraction procedure. The five factors included pH of sample solution, the volume of IL and methanol addition, extraction time and the amount of salt added. The optimal extraction condition was as follows. Sample solution was at a pH of 2.63 in the presence of 60 mg/mL sodium chloride; 30 μL IL and 15 μL methanol were used as extractant and disperser solvent, respectively; extraction was achieved by vortexing for 4 min. Using high-performance liquid chromatography-UV analysis, the limits of detection of the target analytes ranged between 1.9 and 6.4 ng/mL. The linear ranges were between 10 or 20 ng/mL and 1000 ng/mL. This procedure afforded a convenient, fast and cost-saving operation with high extraction efficiency for the model analytes. Spiked waters from two rivers and one lake were examined by the developed method. For the swimming pool water, the standard addition method was employed to determine the actual concentrations of the UV filters.

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“…CIAME has been applied to IL chelate extraction by many researchers [107][108][109][110][111]. Furthermore, another LLME technique termed in situ solvent formation microextraction (ISFME) has been developed [112].…”

Section: Use Of Ionic Liquid Chelate Extraction For Liquid-liquid Micmentioning

confidence: 99%

Chelate Extraction of Metals into Ionic Liquids

Hirayama

2011

SERDJ

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In the solvent extraction of metal cations into ionic liquids, use of Brønsted acid-type chelate extractants has some advantages including simplicity in controlling extraction selectivity by selecting suitable aqueous phase pH values and simple back-extraction recovery of the extracted metals using acid solutions. In this review, various fundamental and applied research on metal extraction using the "ionic liquid chelate extraction system" since 2001 are described in detail.

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Development of an on-line temperature-assisted ionic liquid dispersive microextraction system for sensitive determination of vanadium in environmental and biological samples

Cited by 83 publications

References 37 publications

Highly sensitive kinetic spectrophotometric determination of vanadium based on the oxidation of 2,3,4-trihydroxybenzoic acid with bromate

Highly sensitive kinetic spectrophotometric determination of vanadium based on the oxidation of 2,3,4-trihydroxybenzoic acid with bromate

Orthogonal array design for the optimization of ionic liquid‐based dispersive liquid–liquid microextraction of benzophenone‐type UV filters

Chelate Extraction of Metals into Ionic Liquids

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