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Analytical and Bioanalytical Electrochemistry، جلد ۱۴، شماره ۸، صفحات ۸۰۶-۸۱۷
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عنوان انگلیسی Modified potentiometric Sensor for Yb(III) based on Cefixime and Quaternary-doped Graphene
چکیده انگلیسی مقاله A carbon-based electrode was modified through incorporating N, S, P and B quaternary-doped graphene (NSPBG) in its composition, and given that former studies indicated a selective interaction between cefixime (CEF) and Yb3+ ions in comparison to other lanthanide ions. Therefore, CEF was further incorporated in the CPE composed of a mixed matrix of NSPBG and graphite powder to develop an Yb3+ selective potentiometric carbon paste electrode, and evaluations of the modified CPE reflected that high sensitivity, selectivity; short response time and stability, as well as improved lifetime as opposed to CPEs based on the multiwall carbon nanotube (MWCNTs). The optimized electrode with a composition of 7% NSPBG, 13% CEF, 30% IL and 50 % graphite powder, had a Nernstian response of 19.7±0.1 mV per decade over the concentration range of 1.0×10-7 to 1.0×10-2 M.
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نویسندگان مقاله Eslam Pourbasheer |
Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran

Alimorad Rashidi |
Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), Tehran, P.O. Box 14665-137, Iran

Sedigheh Sadegh Hasani |
Catalysis and Nanotechnology Research Division, Research Institute of Petroleum Industry (RIPI), Tehran, P.O. Box 14665-137, Iran

Morteza Rezapour |
IP Department, Research Institute of Petroleum Industry (RIPI), Tehran, P.O. Box 14665-137, Iran

نشانی اینترنتی https://www.abechem.com/article_254437_8624cb892c85680e110378b60d965315.pdf
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