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Analytical and Bioanalytical Electrochemistry، جلد ۱۶، شماره ۳، صفحات ۲۶۹-۲۷۹
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عنوان انگلیسی A Novel Thulium Selective All-Solid-State Electrode
چکیده انگلیسی مقاله A new all-solid-state ion selective electrode (ASS-ISE) was developed for the determination of thulium trivalent cation. The potentiometric sensor was made by depositing a thin PVC membrane containing N՛-[(2-hydroxyphenyl)methylidene]-2-furohydrazide (L) as a selectophore on a conducting solid-state electrode. The solid-state electrode was a thin copper wire coated by a mixture of multi-walled carbon nanotubes (MWCNTs) and an epoxy resin. The optimal composition of the PVC membrane was 25%wt. of PVC powder, 68% wt. of benzyl acetate, 2% wt. of sodium tetraphenyl borate (NaTPB)), and 5% wt. of L. The sensor showed good selectivity for Tm3+ ion with a Nernstian calibration plot slope of 19.6±0.4 mV/decade in Tm3+ ion solutions with concentrations ranging from 1.0×10-8 M to 1.0×10-3 M, and its limit of detection was as low as 6.3×10-9 M. The proposed sensor was able to detect Tm3+ cations in the wastewater matrix. 
کلیدواژه‌های انگلیسی مقاله sensor, All-solid-state, Potentiometry, Tm3+ cation, Wastewater
نویسندگان مقاله Sajjad Aghabalazadeh |
CinnaGen Medical Biotechnology Research Center, Alborz University of Medical Sciences, Karaj, Iran

Morteza Pirali-Hamedani |
Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran

Morteza Rezapour |
IP Department, Research Institute of Petroleum Industry (RIPI), Tehran Iran

نشانی اینترنتی https://www.abechem.com/article_712242_7f824d1a840cbf39187fdd962e3afea0.pdf
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