Speciation of Cr(III) and Cr(VI) after column solid phase extraction on Amberlite XAD-2010

Bulut, Volkan Numan; Duran, Celal; Tufekci, Mehmet; Elçi, Latif; Soylak, Mustafa

doi:10.1016/j.jhazmat.2006.08.074

Cited by 65 publications

(41 citation statements)

References 21 publications

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“…For this purpose, several separation and enrichment techniques for gold (and for trace metal ions) including solvent extraction [10][11][12], co-precipitation [13][14][15], sorption, [16][17][18][19][20] etc., have been developed. One of this technique, solid-phase extraction (SPE) by Amberlite resins has been widely used for separation and enrichment of almost all the other trace metals, besides gold [21][22][23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Separation and enrichment of gold(III) from environmental samples prior to its flame atomic absorption spectrometric determination

Şentürk¹,

Gündoğdu²,

Bulut³

et al. 2007

Journal of Hazardous Materials

105

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Section: Introductionmentioning

confidence: 99%

“…These chelates have been used for the solidphase extraction of some metal ions from aqueous solutions [6,7,28,29].…”

Section: Introductionmentioning

confidence: 99%

Separation and enrichment of gold(III) from environmental samples prior to its flame atomic absorption spectrometric determination

Şentürk¹,

Gündoğdu²,

Bulut³

et al. 2007

Journal of Hazardous Materials

105

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“…The data obtained from present coprecipitation method have been compared with those of recently reported heavy metal separation and preconcentration methods (Tab. 6) [3,11,[26][27][28][29][30][31][32]. The proposed method is primarily superior to those reported methods in literature in terms of no need to consumption of organic solvent.…”

Section: Discussionmentioning

confidence: 85%

Preconcentration by Coprecipitation of Copper and Nickel with Mo(VI)/Triazole Derivative System and Their Determinations by Flame Atomic Absorption Spectrometry in Food and Water Samples

Özdeş

Duran

Bayrak

et al. 2011

CLEAN Soil Air Water

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A new separation and preconcentration technique based on coprecipitation of Cu (II) and Ni(II) ions by the aid of Mo(VI)/di-tert-butyl{methylenebis[5-(chlorobenzyl)-4H-1,2,4-triazol-3,4-diyl]}biscarbamate (BUMECTAC) precipitate has been established. The Mo(VI)/ BUMECTAC precipitate was dissolved by concentrated HNO 3 and the solution was completed to 5.0 mL with distilled/deionized water. The levels of the analyte ions were determined by flame atomic absorption spectrometer. The effects of experimental conditions like HNO 3 concentration, amount of BUMECTAC and Mo(VI), sample volume, etc. and also the influences of some foreign ions were investigated in detail on the quantitative recoveries of analyte ions. The preconcentration factors were found to be 40 for Cu(II) and 100 for Ni(II) ions. The detection limits for Cu(II) and Ni(II) ions based on 3s (N:10) were 0.43 and 0.70 mg L À1 , respectively. The relative standard deviations were found to be lower than 4.0% for both analyte ions. The accuracy of the method was checked by spiked/recovery tests and the analysis of two certified reference materials (Environment Canada TM-25.3 and CRM-SA-C Sandy Soil C). The procedure was successfully applied to sea water and stream water as liquid samples and baby food as solid sample in order to determine the levels of Cu(II) and Ni(II) ions.

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“…Cr is widely used in the plating, tanning, paint and pigment production and metallurgy industries, all of which have the potential to contaminate the environment (Duran et al 2007). In the sediment of the Beiyunhe River, Cr was found to be bound primarily to the residual fractions.…”

Section: Metal Fractionation Distribution Characteristicsmentioning

confidence: 99%

Application of chemometric methods to analyze the distribution and chemical fraction patterns of metals in sediment from a metropolitan river

Ding

2009

Environ Earth Sci

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Rivers in metropolitan areas are often highly polluted with materials that pose a threat to a large number of residents. Human influences lead to contaminants in metropolitan rivers having more complex sources than those in rural rivers. This complexity results in contamination that is unstable and rapidly changing. Here, the contents and chemical fractionation patterns of eleven toxic elements (As, Cd, Co, Cu, Cr, Mn, Ni, Pb, Zn, Y, and Hg) were evaluated in 13 samples collected from along the Beiyunhe River in Beijing, China. The results revealed that the metal contents were unevenly distributed along the river, with higher levels being observed in the downriver sites and the rendezvous sites. Additionally, more than 80% of the metals were found to be in the residual phase. The organic and sulfide phases were the most important extractable phases of most metals, with Ni, Co, Cu, and Cr primarily being associated with these phases and As, Cd, and Zn having a strong association with the iron/manganese oxide and hydroxide phases. Additionally, Mn was associated with the exchangeable and carbonate phases, with the lowest concentrations being observed in the organic and sulfide phases. Conversely, the metal exchangeable and carbonate phases were uniformly distributed throughout the river. Analysis of the metal sources revealed that particles input from the atmosphere comprised a considerable amount of the metals in the Beiyunhe River. However, these metals likely do not enter the sediment via atmospheric deposition directly, but rather through rainwater runoff into the river. The methods used in the present study will be useful in other studies that require analysis of complex data.

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Speciation of Cr(III) and Cr(VI) after column solid phase extraction on Amberlite XAD-2010

Cited by 65 publications

References 21 publications

Separation and enrichment of gold(III) from environmental samples prior to its flame atomic absorption spectrometric determination

Separation and enrichment of gold(III) from environmental samples prior to its flame atomic absorption spectrometric determination

Preconcentration by Coprecipitation of Copper and Nickel with Mo(VI)/Triazole Derivative System and Their Determinations by Flame Atomic Absorption Spectrometry in Food and Water Samples

Application of chemometric methods to analyze the distribution and chemical fraction patterns of metals in sediment from a metropolitan river

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