What are the possible reasons of redox peaks of rGO modified SPE occuring in negative potential?

28 May 2017 1 9K Report

hello everyone, I am a beginner in the field of biosensors and I am working on rGO based SPE for glucose detection. I am facing some problems such that the redox peaks are occuring in the negative potential and the peak to peak seperation is too high than 59 mV. what are the possible reasons? Need some expert advise. please find the attachment

Aaron Cabrera Asensio

Dear Anas

This kind of behavior is typicl fro SPE with carbon electrodes. Usually is the combination of carbon / silver ink. I should recomend you to use mateprics carbon/grafite inkk. It could improve the performance of your SPE.

http://mateprincs.com/screen-printing/

product SRCE-001 Resistive carbon ink for electrochemical sensors

http://mateprincs.com/wp-content/uploads/2017/05/SRCE-001.pdf

Regards

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