On-line preconcentration and recovery of palladium from waters using polyaniline (PANI) loaded in mini-column and determination by ICP-MS; elimination of spectral interferences

Krishna, M. Bala; Ranjit, Manjusha; Chandrasekaran, K.; Venkateswarlu, G.; Karunasagar, D.

doi:10.1016/j.talanta.2009.06.008

Cited by 85 publications

(17 citation statements)

References 34 publications

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“…and corrosion inhabitation in acid media 14,15 . This class of azo compounds posses active (p-acidic) azo imine (-N= N-C=N-) function, for this reason a number of these azoimidazoles were prepared and their abilities as chelating ligands was investigated [16][17][18] .…”

Section: Introductionmentioning

confidence: 99%

“…Among these two predominant forms, Cr(III) is considered to be essential to mammals for the maintenance of glucose, lipid and protein metabolism, where as Cr(III) is a toxic and S460 SUVARAPU et al carcinogenic form [17][18][19] . Because of the above reasons the determination of chromium in environmental and biological samples is of great interest.…”

Section: Introductionmentioning

confidence: 99%

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Spectrophotometric Determination of Chromium(III) and Iron(III) by used of 2-((E)-(1H-Benzo[D]Imidazol2-Yl)Diazenyl)-5-((E)-Benzylideneimino) Phenol;(BIADPI) as Organic Reagent

Al-Adilee¹,

Eassa²,

Dakhil³

2016

Orient. J. Chem

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The azo reagent 2-((E)-(1H-benzo [d]imidazol2-yl)diazenyl)-5-((E)-benzyl ideneimino) phenol (BIADPI) was prepared and examined by using element analysis (C.H.N.), UV-Vis., Mass spectrum, 1 H-NMR spectrum and infrared spectra. A sensitive and selective spectrophotometric method is proposed for the rapid determination of iron (III) and chromium(III) using (BIADPI), as spectrophotometer reagent. The reaction between this reagent with chromium (III) and iron (III) is instantaneous at (586,536) nm (λ max ) and pH=(7.5,4) to form perpul complexes having a mole ratio 1 : 2 (metal : ligand) for Cr(III) and Fe(III) the absorbance remains stable for over 24 hours. Beer's law is obeyed in the rang of (1-14) µg.ml -1 and (1-21) µg.ml -1 with molar absorptivity (Є) = (7.768x10 5 , 9.3575x10 5 ) L.mol -1.cm -1 and a detection limit of (0.275-0.14) µg.ml -1 obtained respectively. The precision and accuracy were obtained to be R.S.D%=(0.9-0.467)%,Re%=(99.1-98.2-)% and E rel %= (-1.8 -0.9)%.The method is successfully employed for the determination of iron(III) in Pharmaceutical preparations (Anemia drugs). The most important interferences were due to Ni(II), Zn(II), Co(II), Cd(II), Cu(II) and Hg(II) and suitable masking agents were used.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Spectrophotometric Determination of Chromium(III) and Iron(III) by used of 2-((E)-(1H-Benzo[D]Imidazol2-Yl)Diazenyl)-5-((E)-Benzylideneimino) Phenol;(BIADPI) as Organic Reagent

Al-Adilee¹,

Eassa²,

Dakhil³

2016

Orient. J. Chem

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“…Pd and its alloys has been used as a precious metal in different areas of science and technology, including as agents, brazing alloys, petroleum, electrical industries, catalytic chemical reactions, nuclear fuel, oxidation of phenolic compounds, production of catalytic converters 1 and the automotive industry. 2 In addition, alloys of Pd are used in dental and medicinal devices and in jewelry manufacture (2 -5%), 3,4 because of its attractive physical and chemical properties such as high melting point, corrosion resistance and extraordinary catalytic properties.…”

Section: Introductionmentioning

confidence: 99%

A Novel Dispersive Liquid-Liquid Microextraction Method Based on Solidification of Floating Organic Drop for Preconcentration of Pd(II) by Graphite Furnace Atomic Absorption Spectrometry after Complexation by a Thienyl Substituted 1,2-Ethanediamine

et al. 2015

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A novel dispersive liquid-liquid microextraction method based on solidification of floating organic drop (DLLME-SFO) was developed for the preconcentration of ultratrace amounts of palladium (Pd)(II) before its determination by electrothermal atomic absorption spectrometry. Diphenyl ether (m.p. 26 C) was used for the first time as a heavier than water organic solvent in the developed method. Pd was complexed by N,N′-bis(thiophen-2-ylmethylene)ethane-1,2-diamine to be extracted into the dispersed diphenyl ether phase using acetonitril as the disperser solvent. Upon cooling and centrifugation, the organic solvent was sedimented at the bottomn and the aqueous phase was easily decantated. Some factors influencing the extraction efficiency of Pd(II) and its subsequent determination, including extraction and dispersive solvent type and volume, pH of sample solution, concentration of the chelating agent and salting out effect, were studied and optimized both with univariate and multivariate methods. Under the optimized conditions, the calibration graph exhibited linearity over a range of 10 -120 μg L -1 . The enrichment factor was 83.3, the detection limit for Pd (3σ) was 47 ng L -1 and the relative standard deviation was 3.2% (n = 10, 1 ng mL -1 ). The method was successfully applied to the determination of trace amounts of Pd(II) in water samples.

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“…In addition, because of the high economic value of palladium, its separation even in trace amounts is beneficial. Some of the valuable techniques including ET-AAS (Zheng et al 2007), ICP-AES flame atomic absorption spectrometry (FAAS) Bagheri et al 2012a), ICP-MS (Krishna et al 2009), and total reflection XRF spectrometry have been used for palladium determination. The abovementioned methods suffer from some sensitivity and selectivity limitations for real samples (Bagheri et al 2012b;Krishna et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Application of Ion-Imprinted Polymer Nanoparticles for Selective Trace Determination of Palladium Ions in Food and Environmental Samples with the Aid of Experimental Design Methodology

2014

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A solid phase extraction method using Pd 2+ ionimprinted polymer (Pd 2+ -IIP) nanoparticles combined with flame atomic absorption spectrophotometry (FAAS) was developed for the preconcentration and trace detection of palladium ions. The Pd 2+ -IIP nanoparticles were obtained by precipitation polymerization of 4-vinylpyridine (the functional monomer), ethylene glycol dimethacrylate (the cross-linker), 2,2′-azobisisobutyronitrile (the initiator), Eriochrome Cyanine R (the lead-binding ligand), and palladium ions (the template ion) in acetonitrile solution. The parameters affecting adsorption and desorption steps were optimized by a Box-Behnken design through response surface methodology. Three variables (pH value, extraction time, and amount of the synthesized IIP) were selected as the main factors affecting sorption step, while four variables (type of eluent, volume of the eluent, concentration of the eluent, and elution time) were selected for desorption step in the optimization study. The optimized values by this optimization method were 30 mg, 15 min, 6.0, HCl, 4.0 mL, 1.8 mol L -l HCl, and 14 min, for amount of polymer, retention time, pH of solution, type, volume, concentration of the eluent, and elution time, respectively. Under the optimized conditions, the detection limit for the proposed method was found to be 0.2 μg L −1 , while the relative standard deviation (RSD) for five replicate measurements was calculated to be <3 %. Finally, the introduced solid phase extraction technique was successfully applied for extraction and determination of Pd 2+ ions in food and environmental samples.

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On-line preconcentration and recovery of palladium from waters using polyaniline (PANI) loaded in mini-column and determination by ICP-MS; elimination of spectral interferences

Cited by 85 publications

References 34 publications

Spectrophotometric Determination of Chromium(III) and Iron(III) by used of 2-((E)-(1H-Benzo[D]Imidazol2-Yl)Diazenyl)-5-((E)-Benzylideneimino) Phenol;(BIADPI) as Organic Reagent

Spectrophotometric Determination of Chromium(III) and Iron(III) by used of 2-((E)-(1H-Benzo[D]Imidazol2-Yl)Diazenyl)-5-((E)-Benzylideneimino) Phenol;(BIADPI) as Organic Reagent

A Novel Dispersive Liquid-Liquid Microextraction Method Based on Solidification of Floating Organic Drop for Preconcentration of Pd(II) by Graphite Furnace Atomic Absorption Spectrometry after Complexation by a Thienyl Substituted 1,2-Ethanediamine

Application of Ion-Imprinted Polymer Nanoparticles for Selective Trace Determination of Palladium Ions in Food and Environmental Samples with the Aid of Experimental Design Methodology

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