Separation/preconcentration of antimony(III) by nickel/nickel boride nanoparticles prior to hydride generation atomic absorption spectrometric determination

Authors : Miray KAVAS, Nur ERDEM, Raif ILKTAC, Emür HENDEN

Pages : 1-15

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Publication Date : 2020-03-29

Article Type : Research Paper

Abstract :A new, simple, fast and inexpensive method has been developed for the preconcentration of trace amounts of antimonyinsert ignore into journalissuearticles values(III); ions using nickel/nickel boride nanoparticles prior to their determination by hydride generation atomic absorption spectrometry. Optimization of the analytical parameters including initial pH, sorbent amount, contact time, sample volume, eluent type, and interference effects have been performed. Under the optimized conditions, the enrichment factor was 25 and the limit of detection was 0.02 µg/L. Calibration graph was obtained in the range of 0.08-0.80 µg/L with a correlation coefficient of 0.9924. The sorption capacity of the nickel/nickel boride nanoparticles was found to be as high as 2500 mg/g. The proposed method was applied to tap water and bottled drinking water. The quantitative recovery values were obtained in the range of 95-104 %. Langmuir and Freundlich adsorption models were evaluated and the results showed that the sorption process fitted the Langmuir isotherm and monolayer adsorption process occurred. The proposed method was validated with a certified reference material. With the high capacity of the novel nickel/nickel boride nanosorbent, dynamic calibration range with suitable limit of detection and quantification, suitable enrichment factor, rapidity and cost-effectiveness, the proposed method is ideal for the preconcentration and determination of antimonyinsert ignore into journalissuearticles values(III);.
Keywords : Antimony, hydride generation atomic absorption spectrometry