Highly selective amperometric nitrite sensor based on chemically reduced graphene oxide modified electrode

Veerappan Mani; Arun Prakash Periasamy; Shen Ming Chen

doi:10.1016/j.elecom.2012.02.009

Highly selective amperometric nitrite sensor based on chemically reduced graphene oxide modified electrode

Veerappan Mani, Arun Prakash Periasamy, Shen Ming Chen

Research output: Contribution to journal › Article › peer-review

299 Scopus citations

Abstract

Herein, we report a highly selective amperometric nitrite sensor using a chemically reduced graphene oxide (CR-GO) modified glassy carbon electrode (GCE). The nitrite oxidation peak current (I p) at CR-GO/GCE was 1.3 and 2.2 fold higher than that of electrochemically reduced graphene oxide (ER-GO) and unmodified GCEs respectively. Moreover, nitrite oxidation at CR-GO/GCE occurred at + 0.8 V, roughly 80 and 130 mV lower potential than ER-GO and unmodified GCEs respectively. CR-GO/GCE detects nitrite in the linear range of 8.9-167 μM, with a sensitivity of 0.0267 A M - 1. The limit of detection (LOD) was 1 μM. This sensor selectively detects nitrite even in the presence of 1000/250 fold of common ions and biological interferrants. CR-GO/GCE also demonstrates an excellent operational stability and good antifouling properties. The excellent recovery (~ 99%) achieved for nitrite determination in various water samples reveal its promising practicality. © 2012 Elsevier B.V.

Original language	English (US)
Pages (from-to)	75-78
Number of pages	4
Journal	Electrochemistry Communications
Volume	17
Issue number	1
DOIs	https://doi.org/10.1016/j.elecom.2012.02.009
State	Published - Apr 1 2012
Externally published	Yes

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Generated from Scopus record by KAUST IRTS on 2023-09-21

ASJC Scopus subject areas

Electrochemistry

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title = "Highly selective amperometric nitrite sensor based on chemically reduced graphene oxide modified electrode",

abstract = "Herein, we report a highly selective amperometric nitrite sensor using a chemically reduced graphene oxide (CR-GO) modified glassy carbon electrode (GCE). The nitrite oxidation peak current (I p) at CR-GO/GCE was 1.3 and 2.2 fold higher than that of electrochemically reduced graphene oxide (ER-GO) and unmodified GCEs respectively. Moreover, nitrite oxidation at CR-GO/GCE occurred at + 0.8 V, roughly 80 and 130 mV lower potential than ER-GO and unmodified GCEs respectively. CR-GO/GCE detects nitrite in the linear range of 8.9-167 μM, with a sensitivity of 0.0267 A M - 1. The limit of detection (LOD) was 1 μM. This sensor selectively detects nitrite even in the presence of 1000/250 fold of common ions and biological interferrants. CR-GO/GCE also demonstrates an excellent operational stability and good antifouling properties. The excellent recovery (~ 99%) achieved for nitrite determination in various water samples reveal its promising practicality. {\textcopyright} 2012 Elsevier B.V.",

author = "Veerappan Mani and Periasamy, {Arun Prakash} and Chen, {Shen Ming}",

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doi = "10.1016/j.elecom.2012.02.009",

language = "English (US)",

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T1 - Highly selective amperometric nitrite sensor based on chemically reduced graphene oxide modified electrode

AU - Mani, Veerappan

AU - Periasamy, Arun Prakash

AU - Chen, Shen Ming

N1 - Generated from Scopus record by KAUST IRTS on 2023-09-21

PY - 2012/4/1

Y1 - 2012/4/1

N2 - Herein, we report a highly selective amperometric nitrite sensor using a chemically reduced graphene oxide (CR-GO) modified glassy carbon electrode (GCE). The nitrite oxidation peak current (I p) at CR-GO/GCE was 1.3 and 2.2 fold higher than that of electrochemically reduced graphene oxide (ER-GO) and unmodified GCEs respectively. Moreover, nitrite oxidation at CR-GO/GCE occurred at + 0.8 V, roughly 80 and 130 mV lower potential than ER-GO and unmodified GCEs respectively. CR-GO/GCE detects nitrite in the linear range of 8.9-167 μM, with a sensitivity of 0.0267 A M - 1. The limit of detection (LOD) was 1 μM. This sensor selectively detects nitrite even in the presence of 1000/250 fold of common ions and biological interferrants. CR-GO/GCE also demonstrates an excellent operational stability and good antifouling properties. The excellent recovery (~ 99%) achieved for nitrite determination in various water samples reveal its promising practicality. © 2012 Elsevier B.V.

AB - Herein, we report a highly selective amperometric nitrite sensor using a chemically reduced graphene oxide (CR-GO) modified glassy carbon electrode (GCE). The nitrite oxidation peak current (I p) at CR-GO/GCE was 1.3 and 2.2 fold higher than that of electrochemically reduced graphene oxide (ER-GO) and unmodified GCEs respectively. Moreover, nitrite oxidation at CR-GO/GCE occurred at + 0.8 V, roughly 80 and 130 mV lower potential than ER-GO and unmodified GCEs respectively. CR-GO/GCE detects nitrite in the linear range of 8.9-167 μM, with a sensitivity of 0.0267 A M - 1. The limit of detection (LOD) was 1 μM. This sensor selectively detects nitrite even in the presence of 1000/250 fold of common ions and biological interferrants. CR-GO/GCE also demonstrates an excellent operational stability and good antifouling properties. The excellent recovery (~ 99%) achieved for nitrite determination in various water samples reveal its promising practicality. © 2012 Elsevier B.V.

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U2 - 10.1016/j.elecom.2012.02.009

DO - 10.1016/j.elecom.2012.02.009

M3 - Article

SN - 1388-2481

VL - 17

SP - 75

EP - 78

JO - Electrochemistry Communications

JF - Electrochemistry Communications

IS - 1

ER -

Highly selective amperometric nitrite sensor based on chemically reduced graphene oxide modified electrode

Abstract

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