Determination of palladium by adsorptive stripping voltammetry

Georgieva, M.; Pihlar, Boris

doi:10.1007/s002160050266

Cited by 57 publications

(25 citation statements)

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“…Investigation of the reduction process of Pd-DMG complex [14] showed that the voltammetric peak height depends on pH , the concentration of DMG and buffer composition, the scan rate, and the presence of surface active substances [2].The adsorptive stripping response was evaluated with respect to the concentration of the supporting electrolyte and the preconcentration potential. The optimum concentration of the supporting electrolyte (acetate buffer) is 0.1 mol/L and the optimum pH value is 3.5 ± 0.5.…”

Section: Resultsmentioning

confidence: 99%

“…The optimum potential range for its accumulation is between 0 and -0.35 V with respect to the Ag/AgCl electrode [2,14]. Current response during the reduction of the Pd-DMG complex depends on their equilibrium concentration on the electrode surface [14].…”

Section: Resultsmentioning

confidence: 99%

“…Although there are strict requirements in the durability of catalyst material [1], its emission into the environment cannot be avoided. To study the influence of palladium(II) in the environment, reliable information about its concentrations in the ng/g range is needed [2][3].…”

Section: Introductionmentioning

confidence: 99%

“…On the basis of the data published by Wang and Varughese [10] and considering our previous investigations [2,14], we optimised some parameters of importance for adsorptive stripping voltammetry (AdSV). The determination of palladium(TJ) in different solid samples by this method is also presented herein.…”

Section: Introductionmentioning

confidence: 99%

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Some Importante Parameters for Electrochemical Behaviour of Palladium (II) in the Presence of Chelate Ligand Dimethylglyoxime

Georgieva¹

2000

Port. Electrochim. Acta

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The procedure for the voltammetric determination of palladium(II) involves an adsorptive accumulation of palladium(II)-DMG complex on a stationary mercury electrode, followed by a stripping voltammetric measurement of reduction current of adsorbed palladium(H) chelate complex. The optimum conditions for the analysis of palladium(II) included pH (3.5 -4) and an accumulation potential between 0 and -0.3 V (vs. Ag/AgCl). The peak current is proportional to the Pd-DMG concentration and increases linearly with a preconcentration time.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Some Importante Parameters for Electrochemical Behaviour of Palladium (II) in the Presence of Chelate Ligand Dimethylglyoxime

Georgieva¹

2000

Port. Electrochim. Acta

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“…1 Due to increasing in the applications of Rh, for example in automobile Pt-Rh catalysts, development of high sensitive analytical methods for this element has been a demand in environmental science. Most sensitive analytical techniques, such as graphite furnace atomic absorption spectrometry (GFAAS), 2 flame atomic absorption spectrometry (FAAS), 3 adsorptive stripping voltammetry (ASV), 4 inductively coupled plasma-atomic emission spectrometry (ICP-AES), 5 derivative spectrophotometry 6 and inductively coupled plasma-mass spectrometry (ICP-MS) 7 have been used for this purpose. However, all of these methods, except FAAS, are high cost methods with complex instrumentation.…”

Section: Introductionmentioning

confidence: 99%

Ion pair-dispersive liquid-liquid microextraction of trace amount of rhodium ion in water and road dust samples prior to flame atomic absorption spectrometry determination

Afzali¹,

Ghazizadeh²,

Salari³

2011

Quím. Nova

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Recebido em 17/6/10; aceito em 27/1/11; publicado na web em 29/3/11 A simple ion pair-dispersive liquid-liquid microextraction method was proposed for preconcentration trace amounts of rhodium. An ion association complex of RhCl 4 -and tetradecyldimetylbenzylamonium was extracted into cholorobenzene. The volume and the type of extractive and dispersive solvents, the extraction time and the pH of the aqueous solutions were optimized. The calibration curve was linear in the range of 0.6-500 ng mL -1 of rhodium. The limit of detection was 0.10 ng mL -1 in initial solution and preconcentration factor was 40. The proposed method was successfully applied to the extraction and determination of rhodium in road dust and water samples.

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Cathodic Stripping Voltammetric Determination of Platinum in Some Foods and Beverages at ng/g Level Under Statistical Control

2002

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This work was aimed to evaluate the capabilities of catalytic adsorptive stripping voltammetry in quantifying platinum at μg/kg level or lower, under statistical control, in some samples of foods and beverages. Samples of tap water, rosé wine in tetrabrik package, bottled white wine, canned lemon tea, camomile in filter bags, peach fruit juice, UHT semiskimmed milk, wild chicory and bottled red wine (1985 vintage), as well as the in‐house aqueous standard solutions containing 2.0 μg/kg of platinum (used in statistical control), were microwave mineralized. Platinum was quantified at concentration levels lower than 1 μg/kg in tap water, canned lemon tea, camomile in filter bags, UHT semiskimmed milk and wild chicory. In rosé wine in tetrabrik package and bottled white wine the analyte concentration was at μg/kg level, while in the bottled red wine and in the peach fruit juice was not significantly different from zero. Owing to the outstanding sensitivity of the used method, the reproducibility and the precision (expressed as confidence interval at 95% confidence level) of all the results were surprisingly good.

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Determination of palladium by adsorptive stripping voltammetry

Cited by 57 publications

References 1 publication

Some Importante Parameters for Electrochemical Behaviour of Palladium (II) in the Presence of Chelate Ligand Dimethylglyoxime

Some Importante Parameters for Electrochemical Behaviour of Palladium (II) in the Presence of Chelate Ligand Dimethylglyoxime

Ion pair-dispersive liquid-liquid microextraction of trace amount of rhodium ion in water and road dust samples prior to flame atomic absorption spectrometry determination

Cathodic Stripping Voltammetric Determination of Platinum in Some Foods and Beverages at ng/g Level Under Statistical Control

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