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Soylak, M.,Saracoglu, S.,Elci, L. Korean Chemical Society 2003 Bulletin of the Korean Chemical Society Vol.24 No.5
An enrichment/separation system for atomic absorption spectrometric determinations of Cu(Ⅱ), Fe(Ⅲ), Ni(Ⅱ) and Co(Ⅱ) has been established. The procedure is based on the adsorption of the analytes as calmagite chelates on Chromosorb-102. The effects of some parameters including pH, amount of ligand, salt matrix, flow rates of sample and eluent solutions were investigated. Under optimized conditions, the relative standard deviation of the combined method of sample treatment, preconcentration and determination with FAAS (N=5) is generally lower than 5%. The limit of detection (3σ) was between 6.0-112.9 ㎍/L. The results were used for preconcentration of analytes from some sodium and ammonium salt.
M. Ghaedi,P. Mokhtari,M. Montazerozohori,A. Asghari,M. Soylak 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.2
Multiwalled carbon nanotube impregnated by bis(5-bromosalicylidene)-1,3-propandiamine (BBSPN)was synthesized and applied as adsorbent for the enrichment of trace amount of Pb2+ ion subsequenttheir determination by flame atomic absorption spectroscopy (FAAS). The influences of the analyticalparameters including pH, amount of ligand and adsorbent, type and condition of eluent and samplevolume on the Pb2+ ion recoveries were investigated. The optimum pH value for the separation of Pb2+ion on the new sorbent was 6 and the adsorbed Pb2+ ion could be completely eluted by using 5.0 mL of2.0 mol L-1 HNO3 solutions with 0.015 g of ligand and 0.100 g of adsorbent. Common coexisting ions didnot interfere with the separation and determination of target metal ions. The method has high sorption–preconcentration efficiency with relative standard deviation less than 4.0%, especially for leaddetermination in radish, vegetable, potato, tomato and cheeps.
M.A. Habila,E. Yilmaz,Z.A. ALOthman,M. Soylak 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.37 No.-
This work presents a method for the preconcentration of lead using dispersive liquid-liquidmicroextraction. 2,20 Dithiobis (benzothiazole) was used as the chelating agent, and chloroform wasselected as the extraction solvent. Parameters such as: pH, volume of ligand, volume of extractionsolvent and dispersive solvent volume affecting on the extraction efficiency of method has beenevaluated by Plackett–Burman design. The limit of detection and limit of quantification were 4.3 mg L 1and 14.2 mg L 1, respectively. The accuracy of the method was evaluated by analyzing certified referencematerials. Method was applied to the determination of lead in water samples.
E. Alipanahpour Dil,M. Ghaedi,A.M. Ghaedi,A. Asfaram,A. Goudarzi,S. Hajati,M. Soylak,Shilpi Agarwal,Vinod Kumar Gupta 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.34 No.-
The novel adsorbent i.e. ZnO–NR–AC was synthesized and used for the rapid removal of the quaternarydyes from the aqueous solution. The ANN model was used for the optimization and modeling ofsonication time, amount of sorbent and dyes concentrations to study their simultaneous adsorptionbased on achievement of minimum mean squared error as criterion. The optimized parameters wasfound to be 4 min sonication time, 0.022 g of ZnO–NR–AC; MB, EY, CV and AO concentrations were 8.0,9.7, 8.0 and 10.6 mg L 1possible to achieve the removal percentage of 99.89, 99.2, 99.68 and 99.45% forMB, EY, CV and AO, respectively. The analysis of variance (ANOVA) support the high suitability ofachieved equation for the efficient prediction of understudy adsorption system behavior that proofed bythe presence of good agreement among the predicted and experimental data. The Langmuir isothermmodel with maximum adsorption capacities were 89.29, 93.46, 87.52 and 88.5 mg g 1 correspond toMB, CV, EY and AO, respectively.