Synthesis of novel chitosan resin possessing histidine moiety and its application to the determination of trace silver by ICP-AES coupled with triplet automated-pretreatment system

Hosoba, Minako; Oshita, Koji; Katarina, Rosi Ketrin; Takayanagi, Toshio; Oshima, Mitsuko; Motomizu, Shoji

doi:10.1016/j.aca.2009.02.050

Cited by 86 publications

(30 citation statements)

References 21 publications

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“…The disappearance of this band while grafting the amino acid confirms that the amino acid binds to the end of the spacer arm. The grafting of amino acids on chitosan is confirmed by the appearance of new bands at 1637, 1638, and 1631 cm -1 : they are characteristic of carboxylate groups (-COO -) brought by amino acid moieties [39,45]. The intensity of bands at 1422, 1411, and 1387 cm -1 increases on the spectra of alanine, serine, and cysteine derivatives, respectively: this is associated to the increase in the density of amine groups due to amino acid grafting [4].…”

Section: Characterization Of the Sorbentsmentioning

confidence: 94%

Dy(III) recovery from dilute solutions using magnetic-chitosan nano-based particles grafted with amino acids

et al. 2015

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Magnetic-chitosan nano-based particles were successfully prepared by a simple one-pot co-precipitation method before being functionalized with three different amino acid groups (i.e., alanine, serine, and cysteine) using epichlorohydrin as the linking agent. The structural and functional characteristics of the nanosorbents were investigated by elemental analysis, Fourier transform infrared spectrometer, X-ray diffraction, TEM, and vibrating sample magnetometry. The sorption properties of these materials were tested for Dy(III) recovery from aqueous solution: pH effect, uptake kinetics, and sorption isotherms were investigated. Sorbent particles are super-paramagnetic and their size is in the range of 15-40 nm. Kinetic profiles are successfully modeled with the pseudo secondorder rate equation. The Langmuir and the Dubinin-Radushkevich equations fit well-sorption isotherms. The maximum sorption capacities at pH 5 (optimum pH, and at T: 27 ± 1°C) are close to 14.8, 8.9, and 17.6 mg Dy g -1 for alanine, serine, and cysteine type, respectively. Cationic species RE(III) in aqueous solution appear to be sorbed by combined chelation and anion-exchange mechanisms. The sorption process begins at low-metal concentration by a physical monolayer sorption at low ion concentration before metal ions can be sorbed at higher metal concentration by coordination. The values of the thermodynamic parameters DG°and DH°indicate the spontaneous and endothermic nature of the mechanism, while the positive values of DS°show that during the sorption process the randomness increases. Finally, the sorbent can be efficiently regenerated using acidified thiourea: the amount of Dy(III) sorbed is hardly reduced, at least during the first four sorption/desorption cycles.

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Section: Characterization Of the Sorbentsmentioning

confidence: 94%

Dy(III) recovery from dilute solutions using magnetic-chitosan nano-based particles grafted with amino acids

et al. 2015

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“…Due to the low concentrations of trace metals in real samples, the trace metals in large sample volumes should be taken into smaller volumes to obtain preconcentration factor (Hosoba et al 2009;Hu et al 2009;Wang et al 2009;Escaleira et al 2009;Khajeh 2009;Sharma and Pant 2009;Souza and Tarley 2009). Hence, the maximum sample volume was optimized by the investigation of the recovery of trace metals in various sample volumes in the range of 250-2,000 mL at fixed value of metal ions.…”

Section: Effect Of Sample Volumementioning

confidence: 99%

SDS-coated Sepabeads SP70-modified by 4-[(E)-3-phenylallylidene) amino] benzenethiol as new efficient solid phase for enrichment and determination of copper, nickel, chromium, and zinc ions in soil, plants, and mint water samples

Ghaedi

Shabani

Montazerozohori

et al. 2010

Environ Monit Assess

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A sensitive and simple method based on modification of Sepabeads SP70 by 4-((E)-3-phenylallylidene) amino) benzenethiol for the simultaneous preconcentration of trace amounts of copper (Cu), nickel (Ni), chromium (Cr), and zinc (Zn) ions in some real samples has been reported. The metal ions which are retained as respective complexes on solid phase were eluted with 8 ml of 4 M nitric acid. The influences of different analytical parameters including pH, ligand amount and Sepabeads SP70 and SDS amount, eluting solutions, and sample volume on metal ions recoveries were investigated. The effects of matrix ions on the retentions of the analytes were also examined. The recoveries of analytes were generally >95% with RSD between 0.74 and 0.88. The proposed method has been successfully applied for the determination of these metals in some real samples with complex matrices.

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“…The accumulation of Ag(I) ions in organisms (including humans) through the food chain causes numerous diseases and disorders (Rosenman et al, 1987). The World Health Organization (WHO) and the US Environmental Protection Agency (EPA) classified soluble silver ions as hazardous substances in water systems and limited the level of silver in drinking water to be 0.1 mg/L (Hosoba et al, 2009). Zinc is an essential element required for growth and metabolism of living organisms, but it may be toxic when its concentration exceeds that required for correct biological functioning (Chapman et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

Removal of Ag(I) and Zn(II) ions from single and binary solution using sulfonated form of gum arabic-powdered mushroom composite hollow semispheres: Equilibrium, kinetic, thermodynamic and ex-situ studies

Das

Raghavan

Das

2015

Ecological Engineering

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Synthesis of novel chitosan resin possessing histidine moiety and its application to the determination of trace silver by ICP-AES coupled with triplet automated-pretreatment system

Cited by 86 publications

References 21 publications

Dy(III) recovery from dilute solutions using magnetic-chitosan nano-based particles grafted with amino acids

Dy(III) recovery from dilute solutions using magnetic-chitosan nano-based particles grafted with amino acids

SDS-coated Sepabeads SP70-modified by 4-[(E)-3-phenylallylidene) amino] benzenethiol as new efficient solid phase for enrichment and determination of copper, nickel, chromium, and zinc ions in soil, plants, and mint water samples

Removal of Ag(I) and Zn(II) ions from single and binary solution using sulfonated form of gum arabic-powdered mushroom composite hollow semispheres: Equilibrium, kinetic, thermodynamic and ex-situ studies

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