چکیده مقاله
In this report , an electrochemical determination and analysis of selenium is performed at thesurface of a graphite pencil electrode which is modified with a sensing composite involvingacetophenone 2,4 dinitrophenyl hydrazone , polypyrole and copper nano particles Theelectrochemical response of the fabricated modified electrode to selenium has been verifiedusing cyclic and square wave voltammetry techniques The modified electrode exhibited anexcellent electro catalytic ability for reduction of selenium in the acidic media with theoptimized pH of 2 and at the working potential of −0 75 V vs SCE The sensor is in factcapable for the measurement of the differential pulse voltammetry DPV peak currents thatcould be used as the basis for a simple, accurate and rapid method for determining selenium Theanalytical application of the new sensor was examined with its applicability in petrol waste waterreal samples which displays the accurate and precise analysis for selenium determining withoutany serious interferences
کلیدواژهها
نویسندگان
Zohreh Azizi
Department of Food Chemical Engineering, College of Technical and Engineering, Kermanshah Branch, Islamic Azad University , Kermanshah , Iran
Arash Babakhanian
Department of Food Chemical Engineering, College of Technical and Engineering, Kermanshah Branch, Islamic Azad University , Kermanshah , Iran
شیوه ارجاع
Azizi, Zohreh and Babakhanian, Arash,1397,Fabrication a novel modified graphite pencil electrode based on acetophenone (2,4- dinitrophenyl)hydrazone for determination of selenium,Second Conference on Energy Infrastructure, Electrical Engineering and Nanotechnology,Tehran
ارائهشده در
مجموعه مقالات دومین کنفرانس زیرساخت های انرژی،مهندسی برق و نانو فناوری19 اردیبهشت 1397 · تهران