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Comparison of Methods for the Preconcentration of Cadmium (II) Using Amberlite XAD-16 Resin Modified with Anoxybacillus caldiproteolyticus and Geobacillus stearothermophilus as Novel Biosorbents

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Date
2020
Author
Enez, B. and Varhan Oral, E. and Aguloglu Fincan, S. and Ziyadanogullari, B.
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Abstract
The isolation, identification and characterization of bacteria obtained from soil of Ergani Makam Mountain were performed and the results revealed that the bacteria were thermophilic Anoxybacillus caldiproteolyticus. The characterized bacteria and purchased Geobacillus stearothermophilus were immobilized on Amberlite XAD-16 in order to prepare two biosorbents for preconcentration experiments for the determination of cadmium (II) ions. The produced biosorbents were enriched separately using mini-columns and the analyte was determined by flame atomic absorption spectrometry. The effects of solution parameters were investigated for the separation and preconcentration yields. The recovery efficiencies of Amberlite XAD-16 immobilized separately with A. caldiproteolyticus and G. stearothermophilus were determined to be 98.23 ± 2.40 and 98.93 ± 1.3 (n = 5) for the optimum working conditions, respectively. Moreover, the Cd (II) ion was recovered with 10 mL of 1 mol L−1 of HCl and 2 mL of 0.5 mol L−1 HNO3 solutions. The optimum working conditions were determined to be at pH 6.0 and a flow rate of 2 mL min−1 for both biosorbents. The recovery efficiencies of matrix ions were characterized to investigate the feasibility of the developed preconcentration methods. The accuracy of the proposed methods were controlled by analyzing a SCP Science EnviroMAT Waste Water, Low (EU-L-2) certified reference material. The obtained results were comparable to the certified values. These methods were also applied to the analysis of water samples from Dicle River, Hazar Lake and Diyarbakır tap water for Cd (II). © 2019, © 2019 Taylor & Francis Group, LLC.
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https://www.scopus.com/inward/record.uri?eid=2-s2.0-85070902049&doi=10.1080%2f00032719.2019.1650370&partnerID=40&md5=484a35c5b7bc1102ab2910935fce901c
http://acikerisim.bingol.edu.tr/handle/20.500.12898/3945
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  • Scopus İndeksli Yayınlar Koleksiyonu [1357]





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