Synthesis and Application of New Resin Functionalized by Brilliant Green for Spectrophotometric Determination of Mercury in Environmental Samples

Hashemi‐Moghaddam, Hamid; Panahi, Homayon Ahmad; Nezhati, Mahshid Nikpour

doi:10.1080/00032710903060735

Cited by 20 publications

(9 citation statements)

References 22 publications

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“…Several analytical methods have been applied for the determination of mercury in biological and environmental samples, such as spectrophotometry [13,14], atomic absorption spectrometry [15,16], stripping voltammetry [17][18][19][20] using a different electrodes as gold, glassy carbon, nanoparticles, and carbon paste electrodes.…”

Section: Introductionmentioning

confidence: 99%

Development of a carbon nanotubes paste electrode modified with crosslinked chitosan for cadmium(II) and mercury(II) determination

Janegitz

Figueiredo-Filho

Marcolino‐Júnior

et al. 2011

Journal of Electroanalytical Chemistry

110

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a b s t r a c tA functionalized carbon nanotubes paste electrode modified with cross-linked chitosan for the determination of trace amounts of cadmium(II) and mercury(II) by linear anodic stripping voltammetry is described. Under optimal experimental conditions, the peak current was linear in the Cd(II) concentration range from 5.9 Â 10 À8 to 1.5 Â 10 À6 mol L À1 with a detection limit of 9.8 Â 10 À9 mol L À1 and, for Hg(II) from 6.7 Â 10 À9 to 8.3 Â 10 À8 mol L À1 with a detection limit of 2.4 Â 10 À9 mol L À1 . The proposed method was successfully applied for the determination of Hg(II) in natural and industrial wastewater samples, and Cd(II) in sediments, human urine, natural, and industrial wastewater samples.

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Section: Introductionmentioning

confidence: 99%

Development of a carbon nanotubes paste electrode modified with crosslinked chitosan for cadmium(II) and mercury(II) determination

Janegitz

Figueiredo-Filho

Marcolino‐Júnior

et al. 2011

Journal of Electroanalytical Chemistry

110

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“…Preconcentration steps are commonly necessary to attain the levels required for reliable detection (Tarley, Dos Santos, et al 2004;. Several preconcentration procedures such as liquid-liquid extraction (Anthemidis et al 2004), micelle-mediated extraction (Chen and Teo 2001), co-precipitation (Tuzen and Soylak 2009), cloud point extraction (Candir, Narin, and Soylak 2008), and electrochemical methods (Kokkinos et al 2009) were reported in the literature, but solid-phase extraction (Ahmad FeizBakhsh et al 2009;Hashemi-Moghaddam, Ahmad Panahi, and Nikpour Nezhati 2009), mainly associated with flow injection analysis, is most frequently employed due to its advantages in terms of flexibility, simplicity, high-enrichment factor, easy regeneration of solid-phase, low reagent/sample consumption, and high sampling rate .…”

Section: Homayon Ahmad Panahi a Mahshid Nikpour Nezhati A Rohollahmentioning

confidence: 99%

A siliceous support grafted with poly[1-(N,N-bis-carboxymethyl)amino-3-allylglycerol-co-dimethylacrylamide] brushes for removal of nickel from environmental samples

Panahi

Nezhati

Kashkoieh

et al. 2012

Toxicological & Environmental Chemistry

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A system for the determination of nickel(II) after preconcentration on chelating adsorbent and elution with nitric acid is presented in this article. The adsorbent was synthesized by grafting the chelating polymer poly[1-(N,N-biscarboxymethyl)amino-3-allylglycerol-co-dimethylacrylamide (poly(AGE/IDAco-DMAA)) to silica gel. Ni(II) recoveries were above 92% when using 0.5 mol L À1 nitric acid as eluting agent. The sorption capacity of the functionalized sorbent was 12.2 mg g À1 . The chelating sorbent can be reused for at least 15 cycles without any significant change in sorption capacity. The developed method was utilized for preconcentration and determination of Ni(II) in sea water samples by flame atomic absorption spectrometry. The 3 detection limit and 10 quantification limit for Ni(II) were found to be 0.5 and 1.7 mg L À1 , respectively. The equilibrium adsorption data of Ni(II) on modified sorbent were analyzed using Langmuir, Freundlich, Temkin, and Redlich-Peterson models. Based on equilibrium adsorption data, the Langmuir, Freundlich, and Temkin constants were determined as 0.0346, 1.286, and 53.73, respectively, at pH 4.5 and 20 C.

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“…Because of the disadvantages such as the interferences from matrix components, the necessity of operational expertise, and relatively higher costs of other methods [9,10], the use of preconcentration techniques in the determination of Co by flame atomic absorption spectrometry (FAAS) can still be of importance. Among preconcentration techniques, solid-phase extraction (SPE) is widely used due to its simplicity, high concentration factor, and more environmentally friendly reagents used [11,12].…”

Section: Introductionmentioning

confidence: 99%

Removal of cobalt from human serum and environmental samples by adsorption using Amberlite XAD-2–salicylic acid–iminodiacetic acid

Panahi

Sadeghi

Farahmandnejad

et al. 2012

Desalination and Water Treatment

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2012) Removal of cobalt from human serum and environmental samples by adsorption using Amberlite XAD-2-salicylic acid-iminodiacetic acid, Desalination and Water Treatment, 46:1-3, 244-255, A B S T R A C TA new chelating resin was prepared by coupling Amberlite XAD-2 with salicylic acid (SAL) through an azo spacer. Then the polymer support was coupled with iminodiacetic acid (IDA). The resulting sorbent has been characterized by FT-IR, elemental analysis, thermogravimetric analysis, and scanning electron microscopy, and studied for the preconcentration and determination of trace Co(II) ion from human biological fluid and environmental water samples. The optimum pH value for sorption of the metal ion was 7.5. The sorption capacity of functionalized resin was 87.4 mg g À1 . The chelating sorbent can be reused for 20 cycles of sorption-desorption without any significant change in sorption capacity. A recovery of 95.3% was obtained for the metal ion with 0.5 M nitric acid as the eluting agent. The profile of cobalt uptake on this sorbent reflects good accessibility of the chelating sites in the Amberlite XAD-2-SAL/IDA. Scatchard analysis revealed that the homogeneous binding sites were formed in the polymers. The equilibrium adsorption data of Co(II) on modified resin were analyzed by Langmuir, Freundlich, Temkin, and Redlich-Peterson models. Based on equilibrium adsorption data, the Langmuir, Freundlich, and Temkin constants were determined to be 2.265, 56.82, and 148.56 at pH 7.5 and 25˚C, respectively. The method was applied for cobalt ion determination from human plasma and sea water sample.

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Synthesis and Application of New Resin Functionalized by Brilliant Green for Spectrophotometric Determination of Mercury in Environmental Samples

Cited by 20 publications

References 22 publications

Development of a carbon nanotubes paste electrode modified with crosslinked chitosan for cadmium(II) and mercury(II) determination

Development of a carbon nanotubes paste electrode modified with crosslinked chitosan for cadmium(II) and mercury(II) determination

A siliceous support grafted with poly[1-(N,N-bis-carboxymethyl)amino-3-allylglycerol-co-dimethylacrylamide] brushes for removal of nickel from environmental samples

Removal of cobalt from human serum and environmental samples by adsorption using Amberlite XAD-2–salicylic acid–iminodiacetic acid

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