Selective pre-concentration of selenite from aqueous samples using mercapto-silica

Şahin, Feyime; Volkan, Mürvet; Howard, A.G.; Ataman, O. Yavuz

doi:10.1016/s0039-9140(03)00154-1

Cited by 50 publications

(47 citation statements)

References 37 publications

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“…The suitability of several sorbents having SH functional groups to enrich Ge, Te and Se has been shown previously [24][25][26]. Therefore, initial experiments were concentrated on the sorption behavior of various sorbents for the speciation of Sb(III) and Sb(V).…”

Section: Initial Sorption/elution Studiesmentioning

confidence: 99%

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Speciation and preconcentration of inorganic antimony in waters by Duolite GT-73 microcolumn and determination by segmented flow injection-hydride generation atomic absorption spectrometry (SFI-HGAAS)

Erdem

Eroğlu

2005

Talanta

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Section: Initial Sorption/elution Studiesmentioning

confidence: 99%

“…Extraction efficiency of many of the sorbents used in speciation studies is pH dependent [25,26]. Accordingly, in the present study, the first experiments were planned to examine the sorption behavior of Duolite GT-73 resin towards Sb(III) and Sb(V).…”

Section: Extraction Efficiency As a Function Of Phmentioning

confidence: 99%

Speciation and preconcentration of inorganic antimony in waters by Duolite GT-73 microcolumn and determination by segmented flow injection-hydride generation atomic absorption spectrometry (SFI-HGAAS)

Erdem

Eroğlu

2005

Talanta

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“…On the other hand, a prereduction step was applied to measure the higher oxidation states (Sb(V), Se(VI) and Te(VI)). Treatment of the supernatant solution with 2% (m/v) l-cysteine was sufficient for Sb(V) to Sb(III) reduction [19] whereas heating the solution in 6 M HCl served as an efficient prereduction step for Se(VI) [20] and Te(VI) [21].…”

Section: Sorption Of Volatile Hydride-forming Elementsmentioning

confidence: 99%

Separation of trace antimony and arsenic prior to hydride generation atomic absorption spectrometric determination

Yersel

Erdem

Eroğlu

et al. 2005

Analytica Chimica Acta

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A separation method utilizing a synthetic zeolite (mordenite) was developed in order to eliminate the gas phase interference of Sb(III) on As(III) during quartz furnace hydride generation atomic absorption spectrometric (HGAAS) determination. The efficiency of the proposed separation method in the reduction of suppression effects of transition metal ions on As(III) signal was also investigated. Among the volatile hydride-forming elements and their different oxidation states tested (Sb(III), Sb(V), Se(IV), Se(VI), Te(IV), and Te(VI)), only Sb(III) was found to have a signal depression effect even at low (g l −1 ) concentrations under the experimental conditions employed. It has been shown that mordenite adsorbs Sb(III) quantitatively, even at a concentration of 1000 g l −1 , at pHs greater than two, and also, it reduces the initial concentrations of the transition metal ions to lower levels which can be tolerated in many studies. The adsorption of Sb(III) on mordenite follows the Freundlich isotherm and is endothermic in nature.

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“…In general, selenium species in the +4 oxidation state are more toxic than the species containing selenium in their +6 state [6,7]. Recently there has been a remarkable increase of interest in the study of selenium because of the strong correlation between cancer and the selenium concentration in diet [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Biosorption of selenium from aqueous solution by green algae (Cladophora hutchinsiae) biomass: Equilibrium, thermodynamic and kinetic studies

Tüzen

Sarı

2010

Chemical Engineering Journal

198

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Selective pre-concentration of selenite from aqueous samples using mercapto-silica

Cited by 50 publications

References 37 publications

Speciation and preconcentration of inorganic antimony in waters by Duolite GT-73 microcolumn and determination by segmented flow injection-hydride generation atomic absorption spectrometry (SFI-HGAAS)

Speciation and preconcentration of inorganic antimony in waters by Duolite GT-73 microcolumn and determination by segmented flow injection-hydride generation atomic absorption spectrometry (SFI-HGAAS)

Separation of trace antimony and arsenic prior to hydride generation atomic absorption spectrometric determination

Biosorption of selenium from aqueous solution by green algae (Cladophora hutchinsiae) biomass: Equilibrium, thermodynamic and kinetic studies

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