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Preconcentration of metal ions using microbacteria |
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| Authors: | Sadin Özdemir Veysi Okumu? Abdurrahman Dündar Ersin K?l?nç |
| Institution: | 1. Department of Biology, Faculty of Art and Science, Siirt University, 56100, Siirt, Turkey 2. Health Services Vocational High School, Medical Marketing and Promotion Programme, Mardin Artuklu University, 47200, Mardin, Turkey 3. Department of Chemistry, Faculty of Science, Dicle University, 21280, Diyarbakir, Turkey |
| Abstract: | This review (160 refs). covers the current state of the art of microbacteria-based sorbents for preconcentration of metal ions at trace levels. We highlight advantages and major challenges of the techniques and discuss future perspectives of both batch and column-based methods. Particular attention is paid to the preconcentration of metal ions using resin-immobilized microbacteria for solid phase extractions. We also discuss detection methods including UV–vis spectrophotometry, FAAS, ICP-OES and ICP-MS. Analytical figures of merit are compared, and examples are given for the application to a variety of samples including food, beverages, alloys, water, soil, and geological samples. An graphical presentation of main experimental steps in solid phase extraction procedure for metal ions together with the summarization of affinity of metal ions to functional groups on the surface of bacteria by considering the classifications according to hard and soft acids and bases theory by Pearson |
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