Determination of Nickel after Online Sorbent Preconcentration by FI-FAAS Using Dimethylglyoxime as a Complexing Agent

Ali, Akbar; Ye, Yingxue; Xu, Guiqing; Yin, Xingtian; Zhang, Tao

doi:10.1006/mchj.1999.1799

Cited by 28 publications

(11 citation statements)

References 19 publications

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“…Such drawback can be overcome by utilizing an automated on-line preconcentration procedure, where less contamination and less reagent consumption can be done [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of novel chitosan resin derivatized with serine diacetic acid moiety and its application to on-line collection/concentration of trace elements and their determination using inductively coupled plasma-atomic emission spectrometry

Hakim

Sabarudin

Oshima

et al. 2007

Analytica Chimica Acta

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A novel chelating resin functionalized with serine diacetic acid moiety was synthesized by using chitosan as base material, and applied to the collection/concentration of trace elements in environmental water samples, followed by the determination using inductively coupled plasma-atomic emission spectrometer (ICP-AES). The synthesized resin, crosslinked chitosan serine diacetic acid (CCTS-SDA), showed good adsorption behavior toward trace amounts of Cd, Pb, Cu, Ni, V, Ga, Sc, In, and Th in a wide pH range.Additionally, rare earth elements also can be retained on the resin at neutral pH region. The adsorbed elements can be easily eluted with 1 mol L -1 of nitric acid, and their recoveries were found to be 90-100%. The CCTS-SDA was packed in a mini-column, which was then installed in a computer-controlled auto-pretreatment system (Auto-Pret System) for on-linetrace elements collection and determination with ICP-AES. Experimental parameters which related to the improvement of sensitivity and reproducibility were optimized. The limit of detections (LOD) for 13 elements were found to be in sub-ppb level. The proposed method with CCTS-SDA resin was successfully applied to the determination of trace elements in river water samples. The method was validated by determining a certified reference material of river water, SLRS-4.

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“…Such drawback can be overcome by utilizing an automated on-line preconcentration procedure, where less contamination and less reagent consumption can be done [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of novel chitosan resin derivatized with serine diacetic acid moiety and its application to on-line collection/concentration of trace elements and their determination using inductively coupled plasma-atomic emission spectrometry

Hakim

Sabarudin

Oshima

et al. 2007

Analytica Chimica Acta

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“…For extraction and pre-concentration some methods such as liquid-liquid extraction [5] and solid phase extraction [6] but all of these separation methods suffer from lack of selectivity. Metal ions such as Pb(II), Mn(II), Bi(III), Co(II), Cd(II), Zn(II), and Fe(II) could interfere at concentrations higher than 5 mg/L in solid phase extraction of Ni(II) ion using DMG as a complexing agent [7]. This paper deals with a selective and simple method for separation and pre-concentration of Ni(II) ion with DMG-nanopolymer.…”

Section: Introductionmentioning

confidence: 99%

Determination of optimal adsorption-desorption conditions for selective removal of Ni(II) from petrochemical samples using ion imprinted nanosorbent

2018

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Nanoporous particles Ni(II) ion imprinted polymer (IIP), and non-imprinted polymer (NIP) in the absence of Ni(II) ion, with 18-70 nm dimensions were synthesized, and characterized by Fourier transform infrared, energy dispersive X-ray and nuclear magnetic resonance spectroscopic methods. Then, the surface area, pore size and structural composition of the products were characterized by Brunauer-Emmett-Teller and scanning electron microscope methods. Then, modified electrodes by the IIP for Ni(II) sensing and determination, were constructed and their catalytic activity were investigated by cyclic voltammetric method. Some parameters like desorption solvent, amount of sorbent, pH and contact time were optimized, and the measurements were all conducted under optimal conditions. The optimum pH for maximum sorption was obtained 7.8. In the optimum conditions, the maximum sorbent capacity of the IIP was obtained 371.9 µM/g. The limit of detection and relative standard deviation (n = 5) were obtained 1.3 ng/mL and 1.47%, respectively. The pre-concentration procedure revealed a linear curve within the concentration range of 10-6000 ng/mL and a good linearity with squared correlation coefficient of r 2 0.9991 was achieved. The method was applied successfully for determination of Ni(II) ion in petrochemical samples.

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Section: Introductionmentioning

confidence: 99%

“…1 In addition it is readily encountered in the environment, which enters from land-based resources, such as oxidic and sulfide ores or industrial sources, such as spent catalysts, alloy scrap, sludge, dust, and wastewater. 2 Dimethylglyoxime (DMG) is widely used and for the spectrophotometric determination of nickel 3,4 it has also been used for separation and preconcentration of Ni by liquid-liquid extraction 5 or solid phase extraction [6][7][8] but all of these separation methods suffer from lack of selectivity. For example, metal ions such as Ni(II), Pb(II), Mn(II), Bi(III), Co(II), Cd(II), Zn(II), and Fe(II) could interfere at concentrations higher than 5 mg L -1 in solid phase extraction of Ni 2+ using DMG as a complexing agent.…”

Section: Introductionmentioning

confidence: 99%

“…For example, metal ions such as Ni(II), Pb(II), Mn(II), Bi(III), Co(II), Cd(II), Zn(II), and Fe(II) could interfere at concentrations higher than 5 mg L -1 in solid phase extraction of Ni 2+ using DMG as a complexing agent. 8 This paper deals with a selective and simple method for separation and preconcentration of Ni with DMG.Flotation spectrophotometry allows one to preconcentrate the trace elements in various materials. [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] Primary investigations showed that the none of two usual complexes of Ni and DMG could not float completely in interface of liquid and organic phase due to solubility in water and organic phase of Ni(Dm) 3 2-and Ni(HDm) 2 , respectively.…”

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confidence: 99%

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A selective flotation-spectrophotometric method for the determination of nickel using dimethylglyoxime

Hashemi‐Moghaddam¹

2011

J. Braz. Chem. Soc.

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Um método simples e seletivo para a separação e pré-concentração de níquel foi desenvolvido. O método é baseado na flotação de um complexo de Ni e dimetilglioxima (DMG) na interface de uma solução aquosa com n-hexano. O complexo Ni-DMG foi separado e determinado por espectrofotometria. A flotação quantitativa do complexo foi possível no intervalo de pH de 9-12. O método é simples e livre da interferência de todos os cátions e ânions e apresenta um grande intervalo linear. O procedimento foi aplicado com sucesso na determinação de traços de níquel em águas de poços e águas residuais de um processo de eletrodeposição. A exatidão do método foi avaliada usando material de referência certificado (NIST 864) e enriquecendo as amostras com diferentes quantidades de Ni 2+ .A simple and selective method for separation and preconcentration of nickel has been developed. The method is based on the flotation of a complex of Ni and dimethylglyoxime (DMG) at the aqueous solution-n-hexane interface. The complex was separated and Ni determined spectrophotometrically by DMG after addition of oxidizing agent. The quantitative flotation of the complex was possible in the pH range of 9-12. The method is simple and free from the interference of all cations and anions and has a wide linear range. The procedure was successfully applied to the determination of trace amounts of nickel in well water and waste water in coating plant. The method's accuracy was investigated by using standard reference materials alloys (NIST 864) and by spiking the samples with different amounts of Ni 2+ . Keywords: flotation, spectrophotometry, dimethylglyoxime, nickel IntroductionNickel is an important constituent of several steel alloys. Its determination is required to control both raw material and industrial products. 1 In addition it is readily encountered in the environment, which enters from land-based resources, such as oxidic and sulfide ores or industrial sources, such as spent catalysts, alloy scrap, sludge, dust, and wastewater. 2 Dimethylglyoxime (DMG) is widely used and for the spectrophotometric determination of nickel 3,4 it has also been used for separation and preconcentration of Ni by liquid-liquid extraction 5 or solid phase extraction 6-8 but all of these separation methods suffer from lack of selectivity. For example, metal ions such as Ni(II), Pb(II), Mn(II), Bi(III), Co(II), Cd(II), Zn(II), and Fe(II) could interfere at concentrations higher than 5 mg L -1 in solid phase extraction of Ni 2+ using DMG as a complexing agent. 8 This paper deals with a selective and simple method for separation and preconcentration of Ni with DMG.Flotation spectrophotometry allows one to preconcentrate the trace elements in various materials. [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] Primary investigations showed that the none of two usual complexes of Ni and DMG could not float completely in interface of liquid and organic phase due to solubility in water and organic phase of Ni(Dm) 3 2-and Ni(HDm) 2 , respectively. Thus a different ...

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Determination of Nickel after Online Sorbent Preconcentration by FI-FAAS Using Dimethylglyoxime as a Complexing Agent

Cited by 28 publications

References 19 publications

Synthesis of novel chitosan resin derivatized with serine diacetic acid moiety and its application to on-line collection/concentration of trace elements and their determination using inductively coupled plasma-atomic emission spectrometry

Synthesis of novel chitosan resin derivatized with serine diacetic acid moiety and its application to on-line collection/concentration of trace elements and their determination using inductively coupled plasma-atomic emission spectrometry

Determination of optimal adsorption-desorption conditions for selective removal of Ni(II) from petrochemical samples using ion imprinted nanosorbent

A selective flotation-spectrophotometric method for the determination of nickel using dimethylglyoxime

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