Preconcentration and determination of trace metal ions from aqueous samples by newly developed gallic acid modified Amberlite XAD-16 chelating resin

Sharma, Rakesh Kumar; Pant, Parul

doi:10.1016/j.jhazmat.2008.06.120

Cited by 82 publications

(41 citation statements)

References 50 publications

(60 reference statements)

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“…9. The obtained LOD and LOQ are comparable with some reported studies (Ensafi et al 2003;Otero-Romani et al 2005;Huang et al 2008;Sharma and Pant 2009).…”

Section: Methods Validationsupporting

confidence: 90%

“…The sample loading flow rate is one of the most important parameters in obtaining both the quantitative retention and elution of the analytes, respectively (Sharma and Pant 2009;Sabermahani et al 2011). The influence of sample loading flow rates on retention of metal ions was investigated in the flow rates ranging between 1 and 5 mL/min.…”

Section: Influence Of Solution Phmentioning

confidence: 99%

“…This could be due to the speed at which the sample solution passes through the cartridge column. Thus, the timing is not adequate for the equilibrium to be established between the surface of the adsorbent and the analytes which eventually leads to a reduction in analyte recovery (Sharma and Pant 2009;Sabermahani et al 2011). Thus, a flow rate of 2 mL/min was selected for subsequent experimental test runs.…”

Section: Influence Of Solution Phmentioning

confidence: 99%

See 2 more Smart Citations

Polyurethane composite adsorbent using solid phase extraction method for preconcentration of metal ion from aqueous solution

Olorundare

Msagati

Krause

et al. 2014

Int. J. Environ. Sci. Technol.

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Polyurethane composite adsorbent polymeric material was prepared and investigated for selected solidphase extraction for metal ions, prior to its determination by inductively coupled plasma optical emission spectrometry. The surface characterisation was done using Fourier transform infrared spectroscopy. The separation and preconcentration conditions of the analytes investigated includes influence of pH, sample loading flow rate, elution flow rate, type and concentration of eluents. The optimum pH for the highest efficient recoveries for all metal ions, which ranged from 70 to 85 %, is pH 7. The metal ions were quantitatively eluted with 5 mL of 2 mol/L HNO 3 . Common coexisting ions did not interfere with the separation. The percentage recovery of the metal ions ranged between 70 and 89 %, while the results for the limit of detection and limit of quantification ranged from 0.249 to 0.256 and 0.831 to 0.855, respectively. The experimental tests showed good preconcentration results of trace levels of metal ions using synthesised polyurethane polymer adsorbent composite.

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“…9. The obtained LOD and LOQ are comparable with some reported studies (Ensafi et al 2003;Otero-Romani et al 2005;Huang et al 2008;Sharma and Pant 2009).…”

Section: Methods Validationsupporting

confidence: 90%

Section: Influence Of Solution Phmentioning

confidence: 99%

Section: Influence Of Solution Phmentioning

confidence: 99%

See 1 more Smart Citation

Polyurethane composite adsorbent using solid phase extraction method for preconcentration of metal ion from aqueous solution

Olorundare

Msagati

Krause

et al. 2014

Int. J. Environ. Sci. Technol.

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“…Amberlite XAD-2 loaded resins [15][16][17] have low surface area as compared to Amberlite XAD-16. Modified Amberlite XAD16 resin [18][19][20][21][22][23][24] shows good sorption capacity and higher preconcentration factor because of large surface area and these resins can be reused for many cycles of sorption desorption without any significant change (<2%) in its sorption capacity. However, the main problem with this technique is its low sensitivity for trace metals even at mgL -1 level, use of manual devices, more reagent consumption and time consuming.…”

Section: Offline Preconcentration and Elution Of Metal Ionsmentioning

confidence: 99%

Applications of Amberlite XAD based Chelating resins in Online Pre concentration of metal ions

Meena¹,

Saxena²

2017

IOSR JAC

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“…18 Regarding those traditional polymeric phases such as polyurethane, amberlite XAD and modified octadecylsilica, the surface modification with chelating agents has been a strategy for improving the performance of these solid phase extractor towards metal ions adsorption. [19][20][21] On the other hand, these materials usually present low reusability as result of loss of chelating agents after several preconcentration/elution cycles. In this sense, the synthesis of chelating agent free-solid phase extractor (CAF-SPE) based on mixed oxides grafted into a silica matrix has been an interesting strategy for obtaining new materials with high surface area, high resistance to acids and bases, high reusability and improvements on the sensitivity and selectivity towards metal ions adsorption.…”

mentioning

confidence: 99%

Synthesis of Chelating Agent Free-Solid Phase Extractor (CAF-SPE) Based on New SiO2/Al2O3/SnO2 Ternary Oxide and Application for Online Preconcentration of Pb2+ Coupled with FAAS

Tarley¹,

Scheel²,

Ribeiro³

et al. 2017

J. Braz. Chem. Soc.

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A new online solid phase preconcentration method using the new SiO 2 /Al 2 O 3 /SnO 2 ternary oxide (designated as SiAlSn) as chelating agent free-solid phase extractor (CAF-SPE) coupled to flame atomic absorption spectrometry (FAAS) for Pb 2+ determination at trace levels in different kind of samples is proposed. The solid adsorbent has been characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron miscroscopy (SEM), energy dispersive X-ray spectroscopy (EDS), X-ray fluorescence spectroscopy (XRF) and textural data. The method involves the preconcentration using time-based sampling of Pb 2+ solution at pH 4.3 through 100.0 mg of packed adsorbed into a mini-column under flow rate of 4.0 mL min -1 during 5 min. The elution step was accomplished by using 1.0 mol L -1 HCl. A wide range of analytical curve (5.0-400.0 µg L -1 ), high enrichment factor (40.5), low consumption index (0.5 mL) and low limits of quantification and detection, 5.0 and 1.5 µg L -1 , respectively, were obtained with the developed method. Practical application of method was tested on water samples, chocolate powder, Ginkgo biloba and sediment (certified reference material). On the basis of the results, the SiAlSn can be considered an effective adsorbent belonging to the class of CAF-SPE for Pb 2+ determination from different matrices.Keywords: lead, online solid phase extraction, SiO 2 /Al 2 O 3 /SnO 2 , flame atomic absorption spectrometry, food and water samples IntroductionLead contamination has been considered one of the most environmental concern worldwide due to numerous acute and chronic adverse effects caused by the element. 1,2 To the population in general, which is not occupationally exposed, water and food are significant sources of exposure to lead. 2 The most common lead contamination pathways to water are the household plumbing corrosion and anthropic pollution, while to food are the development of plants grown in soil containing high amount of lead and the accidental additive picked up during food processing. [3][4][5][6] Due to its high degree of toxicity and the effects caused to the ecosystem, a rigid monitoring of the activities involving this metal is required.According to World Health Organization (WHO), 6-8 the health-based guideline established value for lead in drinking water is 10.0 µg L -1 , while for food, the seventy-third report of the Joint Food Agriculture Organization/WHO Expert Committee on Food Additives estimated the mean dietary Synthesis of Chelating Agent Free-Solid Phase Extractor (CAF-SPE) Based on New SiO 2 /Al 2 O 3 /SnO 2 Ternary Oxide J. Braz. Chem. Soc. 1226 exposure per day and body weight for children (aged about 1-4 years) and to adults being in the range 0.03-9.00 and 0.02-3.00 µg kg -1 , respectively. The Brazilian Ministry of Health 9 and CONAMA resolution No. 357 (Brazil National Environment Council) 10 established the maximum allowable lead content in freshwater as 30.0 µg L -1 , while for drinking water this index reduces to 10.0 µg L -1 and effluents release...

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Preconcentration and determination of trace metal ions from aqueous samples by newly developed gallic acid modified Amberlite XAD-16 chelating resin

Cited by 82 publications

References 50 publications

Polyurethane composite adsorbent using solid phase extraction method for preconcentration of metal ion from aqueous solution

Polyurethane composite adsorbent using solid phase extraction method for preconcentration of metal ion from aqueous solution

Applications of Amberlite XAD based Chelating resins in Online Pre concentration of metal ions

Synthesis of Chelating Agent Free-Solid Phase Extractor (CAF-SPE) Based on New SiO2/Al2O3/SnO2 Ternary Oxide and Application for Online Preconcentration of Pb2+ Coupled with FAAS

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