Monitoring of copper level in water and soil samples by using liquid–liquid extraction

Shrivas, Kamlesh

doi:10.1007/s10661-009-1115-2

Cited by 15 publications

(2 citation statements)

References 12 publications

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“…Several methods including spectrophotometry [6,7] dispersive liquid–liquid microextraction [8,9], adsorptive stripping voltammetry [10], sequential injection analysis [11], high performance liquid chromatography [12], anodic stripping voltammetry [13,14] have been applied for the determination of copper(II) ions. Various copper(II) electrodes were developed using chalcogenide glass matrix [15–17].…”

Section: Introductionmentioning

confidence: 99%

A Solid-Contact Ion Selective Electrode for Copper(II) Using a Succinimide Derivative as Ionophore

Tutulea-Anastasiu

Wilson

Valle

et al. 2013

Sensors

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All-solid-state sensors with polyvinyl chloride (PVC)-based membranes using off-the-shelf N-hydroxysuccinimide (NHS) and succinimide (Succ) ionophores were prepared using DOP (dioctyl phthalate) and NPOE (ortho-nitrophenyloctyl ether) as plasticizers. Good responses were obtained when NHS was used. The potentiometric response of the proposed electrode is independent of pH over the range 2–6. The electrode shows a fast response time of 0.25 s. The electrode exhibits a Super-Nernstian response, with 37.5 mV/decade, with a potentiometric detection limit of 4.4 μM. The proposed sensor revealed good selectivity towards a group of transition metal ions.

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Section: Introductionmentioning

confidence: 99%

A Solid-Contact Ion Selective Electrode for Copper(II) Using a Succinimide Derivative as Ionophore

Tutulea-Anastasiu

Wilson

Valle

et al. 2013

Sensors

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“…9 and 10. A number of procedures for the separation and preconcentration of Cu have been recently reported, such as LLE, [11][12][13][14] solid phase extraction (SPE), [15][16][17][18][19] molecularly imprinted polymer-based SPE, 20 cloud point extraction, [21][22][23][24] solidified floating organic drop microextraction, 25 coprecipitation 26 and the microcrystalline absorption system. 27 Each procedure has both advantages and drawbacks, and the choice of a preconcentration procedure depends on several factors.…”

Section: Introductionmentioning

confidence: 99%

A novel, environmentally friendly procedure for copper extraction using dimethylindodicarbocyanine dye and subsequent graphite furnace atomic absorption spectrometric detection

et al. 2011

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A reaction based on ion associate formation between dimethylindodicarbocyanine polymethine dye 1,3,3-trimethyl-2-[5-(1,3,3-trimethyl-1,3-dihydroindol-2-ylidene)-penta-1,3-dienyl]-3H-indolium (DIDC) and Cu(I) in the presence of chloride ions as ligand is used to develop a liquid-liquid extraction procedure for the separation and preconcentration of copper with subsequent graphite furnace atomic absorption spectrometric detection. The optimum reaction conditions for ion associate formation and extraction were found to be: pH 3-5, 0.24-0.36 mol L À1 of chloride, 0.05-0.12 mmol L À1 of DIDC, amyl acetate as extraction solvent, an aqueous to organic phase ratio of 5 : 1 mL : mL. A linear response was obtained in the range 0.4-4.8 mg L À1 of Cu, and the limit of detection, calculated from a regression equation based on three times the standard deviation of the blank, was 0.10 mg L À1 . The method was applied to the determination of Cu in real samples. It is important to note that the presented method can also be applied to the determination of Cu(I) in the presence of a 125-fold excess of Cu(II), thus enabling the speciation analysis.

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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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Monitoring of copper level in water and soil samples by using liquid–liquid extraction

Cited by 15 publications

References 12 publications

A Solid-Contact Ion Selective Electrode for Copper(II) Using a Succinimide Derivative as Ionophore

A Solid-Contact Ion Selective Electrode for Copper(II) Using a Succinimide Derivative as Ionophore

A novel, environmentally friendly procedure for copper extraction using dimethylindodicarbocyanine dye and subsequent graphite furnace atomic absorption spectrometric detection

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

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