شماره ركورد كنفرانس :
3550
عنوان مقاله :
Novel Graphene-Pd/Ag Nanoparticles composite Modified Carbon Paste Electrode as a novel hydrazine sensor
پديدآورندگان :
Khodaee Kujan Fatemeh khodaeifateme25@gmail.com Department of Chemistry, Payame Noor University, PO Box 19395-3697, Tehran, Iran; , Karimi Ziba Department of Chemistry, Payame Noor University, PO Box 19395-3697, Tehran, Iran
كليدواژه :
Modifie Electrod , Sensor , Hydrazine
عنوان كنفرانس :
بيست و پنجمين سمينار ملي شيمي تجزيه انجمن شيمي ايران
چكيده فارسي :
In this work, Pd and Ag nanoparticles (Pd/Ag NPs) electrodeposited on an electrochemically reduced graphene oxide (ERGO) modified carbon paste electrode, was prepared for the amprometric determination of hydrazine. It efficiently oxidizes hydrazine at a low over potential of −0.1 V versus SCE. The Pd/Ag/graphene/CPE was used for determination of hydrazine in phosphate buffer solution of pH 7.0. The amperometric current response of the electrode was increased linearly over a hydrazine concentration of 0.5–200 µM with a limit of detection of 0.09 µM .The prepared hydrazine sensor exhibited high sensitivity, good selectivity reproducibility and long term stability.
