Selective recognition of arsenic by tailoring ion-imprinted polymer for ICP-MS quantification

Tsoi, Yeuk-Ki; Ho, Yee-Man; Leung, Kelvin Sze-Yin

doi:10.1016/j.talanta.2011.12.007

Cited by 66 publications

(24 citation statements)

References 34 publications

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“…The static adsorption capacity is the maximum concentration of ions that can be adsorbed by the polymer at equilibrium state [51]. The adsorption of copper (II) ions from the metal ion-containing aqueous solution was investigated.…”

Section: Static Adsorption Capacitymentioning

confidence: 99%

Synthesis and characterization of a new copper(II) ion-imprinted polymer

Kuras

Więckowska

2015

Polym. Bull.

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In this study, a new copper(II) ion-imprinted polymer (Cu(II)-IIP) was synthesized by the precipitation method. Itaconic acid, ethylene glycol dimethacrylate and 2,2 0 -azobisisobutyronitrile were used as functional, cross-linking monomer and a free-radical initiator, respectively. This polymer has been characterized on the basis of Fourier transform infrared spectroscopy and surface area measurements. The imprinted Cu(II) ions were completely removed from the polymer by leaching with the mixture of 0.1 M EDTA and 1 M HCl. The optimum pH for the adsorption of Cu(II) on to the polymer was 6. The selective performance of the polymer was compared to non-imprinted polymer (NIP) for the binary mixture Cu 2? /Ni 2? and Cu 2? /Zn 2? . The relative selectivity of Cu(II)-IIP was 12.8 and 32.4 times greater than that of NIP as compared with the Zn 2? and Ni 2? ions, respectively. At optimal pH value, the maximum static adsorption capacity of Cu(II)-IIP and NIP was found to be 14.8 and 4.08 mg/g, respectively.

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Section: Static Adsorption Capacitymentioning

confidence: 99%

Synthesis and characterization of a new copper(II) ion-imprinted polymer

Kuras

Więckowska

2015

Polym. Bull.

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“…When comparing three functional monomers of 1-vinylimidazole, 4-VP, and styrene, 1-vinylimidazole was proved to have better selectivity and adsorption capacity of a reinforced material. 248 Sun et al 249 used surface ion-imprinted aminefunctionalized silica gel sorbent to selectively remove As(V) from aqueous solution.…”

Section: Metalloid Elements Iipsmentioning

confidence: 99%

Current status and challenges of ion imprinting

et al. 2015

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Ion imprinting technology (IIT) aims to recognize ions while retaining the unique virtues of molecular imprinting technology (MIT), namely structure predictability, recognition specificity and application universality. Owing to special coordination or electrostatic interactions, ion imprinted polymers (IIPs) are generally compatible with aqueous media and have advantages over most molecularly imprinted polymers (MIPs). IIPs can achieve effective identification of water-soluble ions, especially heavy metals and radioactive elements that cause increasing concerns. The purpose of this review is to summarize recent advances of ion imprinting, focusing on the current status and challenges in fundamentals and applications that involve almost all types of ions and ion-related molecular imprinting. In addition, various smart strategies are highlighted, such as surface imprinting, stimuli-responsive imprinting, dual/ multiple components imprinting, click chemistry, and microwave-assisted heating. In this review, the elemental periodic table is first utilized as a template to introduce ion classification standards for various IIPs, including main groups, transition elements, actinides, rare earths, metalloids, anion imprinting and secondary imprinting. Finally, the challenges and possible solution strategies plus future trends are also proposed (302 references).

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“…It is expressed as the entire amount of the adsorbed ions per gram of the polymer sample [18]. In our experiments, we determined the static adsorption capacity, which is defined as the highest concentration of the metal ions that is adsorbed by the polymer at equilibrium [40]. Figure 7 shows the relationship between sorption capacity and the initial concentration of Zn(II) ions in the aqueous solution.…”

Section: Static Adsorption Capacitymentioning

confidence: 99%

Synthesis, characterization and application of a novel zinc(II) ion-imprinted polymer

2017

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In our study, a Zn(II) ion-imprinted polymer (ZnIP) and non-imprinted polymer (NIP) were synthesized via free-radical polymerization. 1-Vinylimidazole, ethylene glycol dimethacrylate, 2-hydroxyethylmethacrylate and 2,2 0 -azobisisobutyronitrile were used as functional, cross-linking monomers and free-radical initiator, respectively. The obtained polymer was characterized by various analytical methods (Fourier Transform Infrared Spectroscopy, Transmission Electron Microscopy, Wavelength Dispersive X-ray Fluorescence, UV VIS, thermal analysis). The sorption properties of ZnIP and NIP were evaluated after removal of Zn(II) ions from the polymer network. The optimum pH for adsorption was 7.0. The maximum adsorption capacity at the pH was 5.2 and 0.22 mg/g for ZnIP and NIP, respectively. To determine the selectivity, the polymer was equilibrated with the binary mixture of Zn(II) ions and the interfering ions [Cu(II), Ni(II) or Co(II)]. The relative selectivity of ZnIP was 22.57, 5.44 and 46.17 for Cu(II), Ni(II) and Co(II) ions, respectively. The proposed ZnIP sorbent was applied to determine the zinc ions in urine samples by Wavelength Dispersive X-ray Fluorescence.

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Selective recognition of arsenic by tailoring ion-imprinted polymer for ICP-MS quantification

Cited by 66 publications

References 34 publications

Synthesis and characterization of a new copper(II) ion-imprinted polymer

Synthesis and characterization of a new copper(II) ion-imprinted polymer

Current status and challenges of ion imprinting

Synthesis, characterization and application of a novel zinc(II) ion-imprinted polymer

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