Ternary ion-association complex based ion imprinted polymers (IIPs) for trace determination of palladium(II) in environmental samples

Daniel, Sobhi; Praveen, R.S.; Rao, T. Prasada

doi:10.1016/j.aca.2006.04.007

Cited by 66 publications

(22 citation statements)

References 23 publications

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“…The high selectivity of IIPs can be explained by the polymer memory effects towards the metal ion interaction with a specific ligand, coordination geometry, metal ion coordination number, charge and size [9]. Numerous studies on ion-imprinted polymers and their use for selective separation and preconcentration of metal ions have been reported: UO 2 (II) [10][11][12], Cd(II) [13], Pd(II) [14][15][16][17], Cu(II) [18][19][20][21], Fe(III) [22,23], Hg(II) [24,25], Ni(II) [26,27], Cr(III) [28] and Zn(II) [29].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of nano-pore thallium (III) ion-imprinted polymer as a new sorbent for separation and preconcentration of thallium

Arbab-Zavar

Chamsaz

Zohuri

et al. 2011

Journal of Hazardous Materials

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Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of nano-pore thallium (III) ion-imprinted polymer as a new sorbent for separation and preconcentration of thallium

Arbab-Zavar

Chamsaz

Zohuri

et al. 2011

Journal of Hazardous Materials

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“…The target ion could be bound to the sorbent chain by means of noncovalent interactions (hydrogen bonds, ion bonds, hydrophobic interactions, Van der Waals interactions) or by covalent bonding. Four different approaches for synthesis of IIPs for metal ions could be distinguished []: cross‐linking of linear polymers containing metal groups in their structures with bifunctional reagents in the presence of metal ions; synthesis and isolation of binary complexes of metal ions and ligands containing vinyl groups with subsequent polymerization with matrix‐forming monomers; surface imprinting on the aqueous–organic interface; binary/ternary mixed ligand complexes of metal ions with nonvinyl chelate and vinyl ligand. …”

Section: Sorbentsmentioning

confidence: 99%

Solid‐phase extraction in the determination of gold, palladium, and platinum

Mladenova

Karadjova²,

Tsalev³

2012

J of Separation Science

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A simple classification of various sorbents and solid-phase extraction procedures used for preconcentration of trace levels of Au, Pd, and Pt from different sample types is proposed in this review article. The large variety of available sorbents/procedures has been organized according to expected mechanisms of sorption process (complex formation; ion exchange; adsorption; ion-imprinted or molecularly imprinted polymers); according to the kind of monomeric units of the polymer matrix as well as on the basis of the kind of functional group responsible for main performance characteristics (selectivity, capacity) of the sorbent. Advantages of chemically modified sorbents, sulfur-containing sorbent extractants, and ion-imprinted polymers, together with rational pretreatment by means of microwave treatments, scaling down of enrichment, and quantification by means of flow and flow injection approaches are given. Preferred instrumental techniques for quantification of ppb levels of Au, Pd, and Pt in prepared concentrates/column eluates are multielement instrumental techniques: inductively coupled plasma optical emission spectrometry (ICP-OES), and inductively coupled plasma mass spectrometry (ICPMS). Excellent limits of detection at picogram levels of these analytes are provided by electrothermal atomic absorption spectrometry (ETAAS), generally in single-element mode and the neutron activation analysis (NAA), while X-ray fluorescence spectrometry and flame AAS are rarely applied because of lack of sensitivity at sub-ppm levels of Au, Pd, and Pt. Some problems of atomic spectrometric quantification techniques and their representative limits of detection are given. Recent applications to geological, industrial, pharmaceutical, biological, and other materials are tabulated. References have been selected mostly from the period 1995 to 2010.

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“…So, the development of new methods for quantifying trace metals has been required and challenged. One of widely used and fast emerging preconcentrative separation techniques for this purpose is the solid-phase extraction (SPE) due to its advantages (Daniel et al 2006). So far, different SP-extractors were used for determination of Cd(II) and Zn(II) from different real samples (Rajabi et al 2014;Behbahani et al 2013Behbahani et al , 2014Barciela-Alonso et al 2014;Jamshidi et al 2011;Ghaedi et al 2013a, b, d, e;Shakerian et al 2012).…”

Section: Introductionmentioning

confidence: 98%

Application of silica fume as a new SP-extractor for trace determination of Zn(II) and Cd(II) in pharmaceutical and environmental samples by square-wave anodic stripping voltammetry

2015

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In this work, silica fume (SF) is used as a solidphase extractor for extraction of Zn(II) and Cd(II) from aqueous solutions. Characterization of SF is performed by Fourier transform infrared, X-ray diffraction, transmission and scanning electron microscopy. The optimum experimental conditions for the two metal ions are investigated using batch and column techniques. The maximum adsorption capacity values are found to be 54.13 and 121.28 mg g -1 at the optimum pH 6.0 and 8.0 for Zn(II) and Cd(II), respectively. The equilibrium data are analyzed using the Langmuir, Freundlich, and Temkin isotherms by nonlinear regression analysis. Also, the kinetics analysis revealed that the overall adsorption process is successfully fitted with the pseudo-second-order model. The method is applied for determination of the target metal ions in pharmaceutical and environmental samples using squarewave anodic stripping voltammetry. The limit of detection (LOD) values are 0.102 and 1.43 9 10 -3 mg L -1 for Zn(II) and Cd(II), respectively. The percentage recovery values are 98.8-100.5 % which indicate the success of the proposed method for determination of Zn(II) and Cd(II) without interfering effects.

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Ternary ion-association complex based ion imprinted polymers (IIPs) for trace determination of palladium(II) in environmental samples

Cited by 66 publications

References 23 publications

Synthesis and characterization of nano-pore thallium (III) ion-imprinted polymer as a new sorbent for separation and preconcentration of thallium

Synthesis and characterization of nano-pore thallium (III) ion-imprinted polymer as a new sorbent for separation and preconcentration of thallium

Solid‐phase extraction in the determination of gold, palladium, and platinum

Application of silica fume as a new SP-extractor for trace determination of Zn(II) and Cd(II) in pharmaceutical and environmental samples by square-wave anodic stripping voltammetry

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