Simultaneous preconcentrations of Co2+, Cr6+, Hg2+ and Pb2+ ions by Bacillus altitudinis immobilized nanodiamond prior to their determinations in food samples by ICP-OES
| Autor: | Mustafa Soylak, Veysi Okumuş, Sadin Özdemir, Kadir Serdar Çelik, Ersin Kılınç |
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| Přispěvatelé: | [Ozdemir, Sadin -- Okumus, Veysi] Siirt Univ, Fac Art & Sci, Dept Biol, TR-56100 Siirt, Turkey -- [Kilinc, Ersin] Mardin Artuklu Univ, Med Mkt & Promot Programme, Hlth Serv Vocat High Sch, TR-47200 Mardin, Turkey -- [Celik, Kadir Serdar] Batman Univ, Dept Chem, Fac Art & Sci, Batman, Turkey -- [Soylak, Mustafa] Erciyes Univ, Fac Sci, Dept Chem, TR-38039 Kayseri, Turkey, Soylak, Mustafa -- 0000-0002-1017-0244, Kilinc, Ersin -- 0000-0001-5223-9919 |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Analyte
Metal ions in aqueous solution ved/biology.organism_classification_rank.species Analytical chemistry Bacillus altitudinis Bacillus 010501 environmental sciences 01 natural sciences Analytical Chemistry Nanodiamonds Column chromatography Spectroscopy Fourier Transform Infrared Solid phase extraction Nanodiamond 0105 earth and related environmental sciences Ions Pb2+ ved/biology Chemistry 010401 analytical chemistry Solid Phase Extraction Biosorption General Medicine 0104 chemical sciences Inductively coupled plasma atomic emission spectroscopy Preconcentration Co2+ Food Science Cr6+ |
| Popis: | WOS: 000384777400055 PubMed ID: 27542497 A novel solid phase extraction method was developed for simultaneous preconcentration-separation of Co2+, Cr6+, Hg2+ and Pb2+ ions prior to their determinations in food samples by ICP-OES. Thermophilic Bacillus altitudinis immobilized nanodiamond was used as a new biosorbent. SEM and FT-IR analysis were studied to characterize the biosorbent. The optimum pH values of quantitative biosorption for Co2+, Cr6+, Hg2+ and Pb2+ were found to be 5.0, 6.0, 6.0 and 6.0, respectively. A flow rate of 3.0 mL min(-1) was selected as optimum for all metal ions. 5 mL of 1 mol/L HCl was used as eluent. Preconcentration factor was achieved as 80. LODs were calculated as 0.071, 0.023, 0.016 and 0.034 ng mL(-1), respectively for Hg2+, Co2+, Cr6+ and Pb2+. The biosorption capacities were calculated for Co2+, Cr6+, Hg2+ and Pb2+ as 26.4, 30.4, 19.5, and 35.2 mg/g, respectively. The developed method was successfully applied to food samples to determine analyte concentrations. (C) 2016 Published by Elsevier Ltd. |
| Databáze: | OpenAIRE |
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