Screen-printed electrode modified with a composite prepared from graphene oxide nanosheets and Mn3O4 microcubes for ultrasensitive determination of nitrite

Akilarasan Muthumariappan; Mani Govindasamy; Shen Ming Chen; Kogularasu Sakthivel; Veerappan Mani

doi:10.1007/s00604-017-2379-9

Screen-printed electrode modified with a composite prepared from graphene oxide nanosheets and Mn₃O₄ microcubes for ultrasensitive determination of nitrite

Akilarasan Muthumariappan
, Mani Govindasamy
, Shen Ming Chen^*
, Kogularasu Sakthivel
, Veerappan Mani

^*Corresponding author for this work

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

73 Scopus citations

Abstract

The authors describe a screen-printed electrode (SPE) modified with a composite consisting of Mn₃O₄ microcubes and thin sheets of graphene oxide for use in amperometric determination of nitrite. The composite was prepared by a hydrothermal method, and its morphology, elemental composition, diffraction, impedance and electrochemical properties were studied. The modified SPE displays excellent electrocatalytic activity towards nitrite, and the oxidation peak current (measured typically at 0.70 V vs. Ag/AgCl) is related to the concentration of nitrite in the range between 0.1 and 1300 μM, with a 20 nM detection limit. The method was successfully applied to the determination of nitrite in spiked samples of beef and water. [Figure not available: see fulltext.].

Original language	English
Pages (from-to)	3625-3634
Number of pages	10
Journal	Microchimica Acta
Volume	184
Issue number	9
DOIs	https://doi.org/10.1007/s00604-017-2379-9
State	Published - 1 Sep 2017
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2017, Springer-Verlag GmbH Austria.

Keywords

Analytical science
Cancer causing chemicals
Food safety
Graphene based composites
Manganese oxide
Water analysis

ASJC Scopus subject areas

Analytical Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1007/s00604-017-2379-9

Cite this

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title = "Screen-printed electrode modified with a composite prepared from graphene oxide nanosheets and Mn3O4 microcubes for ultrasensitive determination of nitrite",

abstract = "The authors describe a screen-printed electrode (SPE) modified with a composite consisting of Mn3O4 microcubes and thin sheets of graphene oxide for use in amperometric determination of nitrite. The composite was prepared by a hydrothermal method, and its morphology, elemental composition, diffraction, impedance and electrochemical properties were studied. The modified SPE displays excellent electrocatalytic activity towards nitrite, and the oxidation peak current (measured typically at 0.70 V vs. Ag/AgCl) is related to the concentration of nitrite in the range between 0.1 and 1300 μM, with a 20 nM detection limit. The method was successfully applied to the determination of nitrite in spiked samples of beef and water. [Figure not available: see fulltext.].",

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author = "Akilarasan Muthumariappan and Mani Govindasamy and Chen, \{Shen Ming\} and Kogularasu Sakthivel and Veerappan Mani",

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T1 - Screen-printed electrode modified with a composite prepared from graphene oxide nanosheets and Mn3O4 microcubes for ultrasensitive determination of nitrite

AU - Muthumariappan, Akilarasan

AU - Govindasamy, Mani

AU - Chen, Shen Ming

AU - Sakthivel, Kogularasu

AU - Mani, Veerappan

PY - 2017/9/1

Y1 - 2017/9/1

N2 - The authors describe a screen-printed electrode (SPE) modified with a composite consisting of Mn3O4 microcubes and thin sheets of graphene oxide for use in amperometric determination of nitrite. The composite was prepared by a hydrothermal method, and its morphology, elemental composition, diffraction, impedance and electrochemical properties were studied. The modified SPE displays excellent electrocatalytic activity towards nitrite, and the oxidation peak current (measured typically at 0.70 V vs. Ag/AgCl) is related to the concentration of nitrite in the range between 0.1 and 1300 μM, with a 20 nM detection limit. The method was successfully applied to the determination of nitrite in spiked samples of beef and water. [Figure not available: see fulltext.].

AB - The authors describe a screen-printed electrode (SPE) modified with a composite consisting of Mn3O4 microcubes and thin sheets of graphene oxide for use in amperometric determination of nitrite. The composite was prepared by a hydrothermal method, and its morphology, elemental composition, diffraction, impedance and electrochemical properties were studied. The modified SPE displays excellent electrocatalytic activity towards nitrite, and the oxidation peak current (measured typically at 0.70 V vs. Ag/AgCl) is related to the concentration of nitrite in the range between 0.1 and 1300 μM, with a 20 nM detection limit. The method was successfully applied to the determination of nitrite in spiked samples of beef and water. [Figure not available: see fulltext.].

KW - Analytical science

KW - Cancer causing chemicals

KW - Food safety

KW - Graphene based composites

KW - Manganese oxide

KW - Water analysis

UR - https://www.scopus.com/pages/publications/85021721642

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DO - 10.1007/s00604-017-2379-9

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