Liquid-liquid extraction and spectrophotometric determination of palladium(II) and ruthenium (III) with isonitrosoethylbenzoylacetate

Jagdale, M. H.; Desai, B. J.; Shinde, V. M.

doi:10.1007/bf01196322

Cited by 6 publications

(1 citation statement)

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“…Liquid-based extraction and solid-phase extraction (SPE) are the two techniques which have found widespread applications on the determination of palladium. Liquid-liquid extraction (Jagdale et al 1980), cloud point extraction (Tong et al 2011), and dispersive liquid-liquid microextraction (Shamsipur et al 2009) are some liquid-based methods which have been applied for preconcentration and determination of palladium. SPE is flexible in choice of adsorbent and operation and is preferred to liquid-liquid extraction in the viewpoint of simplicity, cleanness, low reagent, organic consumption, and also high enrichment ability (Behbahani et al 2013a, b;Fouladian and Behbahani 2014;Ghorbani-Kalhor et al 2014;Behbahani et al 2014c, d;Salarian et al 2014;Nabid et al 2014;Behbahani et al 2015).…”

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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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