Pre-concentration and separation of vanadium on Amberlite IRA-904 resin functionalized with porphyrin ligands

Pyrzyńska, Krystyna; Wierzbicki, T. L.

doi:10.1016/j.aca.2004.09.015

Cited by 38 publications

(18 citation statements)

References 16 publications

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“…Therefore, it is very important to develop accurate and reliable methods for the speciation of V(IV) and V(V) in environmental water samples. Different analytical techniques have been used for trace vanadium analysis and its speciation in various samples, including spectrophotometry [5,6], atomic absorption spectrometry (AAS) [7][8][9], neutron activation analysis (NAA) [10], ICP-OES [4,11,12] and inductively coupled plasma mass spectrometry (ICP-MS) [13,14]. Among these techniques, ICP-OES/MS has become one of the powerful techniques for the determination of vanadium due to its attractive features including low detection limit, good precision, wide linear dynamic range, multi-element detection capacity, and high sample throughput.…”

Section: Introductionmentioning

confidence: 99%

“…The separation techniques for the vanadium speciation could be generally classified into chromatographic techniques [13][14][15] and non-chromatographic techniques [3,4,7,10,11,[16][17][18][19][20][21][22][23][24][25]. For a simple elemental speciation, especially for different oxidation states of a given element, non-chromatographic methods are more diffused than the chromatographic techniques.…”

Section: Introductionmentioning

confidence: 99%

“…It should be noted that the selection of adsorbents is one of the key factors in SPE and much attention has been paid to the investigation of new adsorption materials for SPE. Some solid phase adsorbents including chelating resin [7,21,24], multiwalled carbon nanotubes [8], ion-exchange resin [10], biosorbent material [11], functionalized cellulose adsorbent [18], and TTA modified-microcrystalline naphthalene [19] have been employed for the speciation of vanadium. However, due to the easy oxidation of V(IV) to V(V) by atmospheric oxygen at low acidity and similar chemical properties of the two oxidation states, it is difficult to directly separate V(IV) from V(V) in real samples by using a chelating reagent modified adsorbent [26].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

On-line separation/preconcentration of V(IV)/V(V) in environmental water samples with CTAB-modified alkyl silica microcolumn and their determination by inductively coupled plasma-optical emission spectrometry

Xiong

2010

Journal of Hazardous Materials

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

On-line separation/preconcentration of V(IV)/V(V) in environmental water samples with CTAB-modified alkyl silica microcolumn and their determination by inductively coupled plasma-optical emission spectrometry

Xiong

2010

Journal of Hazardous Materials

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“…On the other hand, there is a strong similarity between the sorption properties of unmodified and functionalized silica towards both vanadium species at pHs higher than 3.0 with a slight difference in the sorption percentages at pH 9.0. At first River water [26] Thenoyltrifluoroacetone (TTA) on microcrystalline column…”

Section: Effect Of Phmentioning

confidence: 99%

“…Amberlite IRA-904 resin modified with tetrakis (pcarboxyphenyl) porphyrin (TCPP) was used to preconcentrate vanadium species [26]. Several parameters, such as sorption capacity of the chelating resin, pH for retention of V(IV) and V(V) and volume of sample and eluent were evaluated.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of aminopropyl triethoxysilane-functionalized silica and its application in speciation studies of vanadium(IV) and vanadium(V)

Erdem

Shahwan

Çağır

et al. 2011

Chemical Engineering Journal

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a b s t r a c tA solid phase extraction sorbent, aminopropyl triethoxysilane-functionalized silica was prepared and used for vanadium speciation prior to inductively coupled plasma mass spectrometric determination. The necessary sorption parameters such as sorption pH, reaction temperature, sorbent amount and sample volume were optimized. The sorption for V(V) and V(IV) under the optimized conditions was 98% (±1) and was lower than 10%, respectively. The sorption process was investigated both from a kinetic perspective and also in terms of Freundlich, Dubinin-Radushkevich and Langmuir isotherm models to characterize the uptake of vanadate ion by the functionalized silica. Desorption from the sorbent was realized with 0.5 mol L −1 thiourea prepared in 0.2 mol L −1 HCl. Among the possible interfering species tested, Te(IV), Se(IV), Se(VI) and Fe(III) showed interference effects with V(V) signal. The validity of the method was first checked via spike recovery experiments with four different types of water; namely ultra pure, bottled drinking, tap, and sea water for different concentrations of V(V). The percent recovery values changed between 87 and 108 for all water types. The accuracy of the proposed methodology was also checked by analyzing a standard reference material (NIST, SRM 1643e) and a good agreement was found between the determined and the certified value. The proposed methodology has also been shown to be applicable for the separate sorption of V(V) in the absence/presence of V(IV) and for the sorption of both V(IV) and V(V) in waters. The amount of V(IV) can then be determined from the difference.

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Novel ultrasonic‐assisted deep eutectic solvent‐based dispersive liquid–liquid microextraction for determination of vanadium in food samples by electrothermal atomic absorption spectrometry: A multivariate study

Zounr

Tüzen

Khuhawar

2017

Applied Organom Chemis

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A green, efficient, simple and sensitive pre‐concentration method has been developed for the determination of vanadium(V) in foodstuffs using deep eutectic solvent–ultrasonic‐assisted dispersive liquid–liquid microextraction. In the developed procedure, the extraction of vanadium(V) was achieved using 2‐hydroxy‐3‐methoxybenzaldehyde thiosemicarbazone as a chelating agent, choline chloride–phenol as extracting solvent and tetrahydrofuran as dispersive solvent. Vanadium(V) concentration was measured using electrothermal atomic absorption spectrometry. Various analytical parameters including pH, type and molar ratio of deep eutectic solvent, ultrasonication time and amount of ligand were studied. A multivariate study was carried out for optimization of the variables. The pre‐concentration factor was calculated as 50. Under optimal conditions, limit of detection, limit of quantification and relative standard deviation were calculated as 0.025 μg l−1, 0.175 μg l−1 and 3.4%, respectively. The accuracy of the procedure was confirmed using certified reference materials and standard addition method. The obtained results confirm adequate recoveries for vanadium(V) (>96%). This technique was fruitfully applied for determination of vanadium in foodstuffs.

show abstract

Pre-concentration and separation of vanadium on Amberlite IRA-904 resin functionalized with porphyrin ligands

Cited by 38 publications

References 16 publications

On-line separation/preconcentration of V(IV)/V(V) in environmental water samples with CTAB-modified alkyl silica microcolumn and their determination by inductively coupled plasma-optical emission spectrometry

On-line separation/preconcentration of V(IV)/V(V) in environmental water samples with CTAB-modified alkyl silica microcolumn and their determination by inductively coupled plasma-optical emission spectrometry

Synthesis of aminopropyl triethoxysilane-functionalized silica and its application in speciation studies of vanadium(IV) and vanadium(V)

Novel ultrasonic‐assisted deep eutectic solvent‐based dispersive liquid–liquid microextraction for determination of vanadium in food samples by electrothermal atomic absorption spectrometry: A multivariate study

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