A Nanostructure Based Electrochemical Sensor for Square Wave Voltammetric Determination of L-Cysteine in the Presence of High Concentration of Folic Acid

Mohammad A. Khalilzadeh; Hassan Karimi-Maleh; Vinod K. Gupta

doi:10.1002/elan.201500040

A Nanostructure Based Electrochemical Sensor for Square Wave Voltammetric Determination of L-Cysteine in the Presence of High Concentration of Folic Acid

Mohammad A. Khalilzadeh^*
, Hassan Karimi-Maleh
, Vinod K. Gupta

^*Corresponding author for this work

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

52 Scopus citations

Abstract

This study describes the development, electrochemical characterization and utilization of 8,9-dihydroxy-7-methyl-12H-benzothiazolo [2,3-b]quinazolin-12-one (DMBQ)/ZnO nanoparticles (ZnO/Nps)-carbon paste electrode (DMBQ/ZnO/NPs/CPE) as a modified sensor for the electrocatalytic determination of cysteine (Cys) in the presence of folic acid (FA). ZnO/NPs was synthesized and characterized by X-ray diffraction (XRD) method. The prepared DMBQ/ZnO/NPs/CPE was developed as a highly sensitive voltammetric sensor for determination of Cys in the presence of FA in real samples. Square wave voltammetry (SWV) of Cys exhibited linear dynamic range with a detection limit (3σ) of 0.05μmol/L.

Original language	English
Pages (from-to)	1766-1773
Number of pages	8
Journal	Electroanalysis
Volume	27
Issue number	7
DOIs	https://doi.org/10.1002/elan.201500040
State	Published - 1 Jul 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords

Cysteine
Electrocatalytic
Folic acid
Modified electrode
Nanostructure sensor

ASJC Scopus subject areas

Analytical Chemistry
Electrochemistry

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10.1002/elan.201500040

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@article{7bfc1c30efa1487b852a739248c84340,

title = "A Nanostructure Based Electrochemical Sensor for Square Wave Voltammetric Determination of L-Cysteine in the Presence of High Concentration of Folic Acid",

abstract = "This study describes the development, electrochemical characterization and utilization of 8,9-dihydroxy-7-methyl-12H-benzothiazolo [2,3-b]quinazolin-12-one (DMBQ)/ZnO nanoparticles (ZnO/Nps)-carbon paste electrode (DMBQ/ZnO/NPs/CPE) as a modified sensor for the electrocatalytic determination of cysteine (Cys) in the presence of folic acid (FA). ZnO/NPs was synthesized and characterized by X-ray diffraction (XRD) method. The prepared DMBQ/ZnO/NPs/CPE was developed as a highly sensitive voltammetric sensor for determination of Cys in the presence of FA in real samples. Square wave voltammetry (SWV) of Cys exhibited linear dynamic range with a detection limit (3σ) of 0.05μmol/L.",

keywords = "Cysteine, Electrocatalytic, Folic acid, Modified electrode, Nanostructure sensor",

author = "Khalilzadeh, \{Mohammad A.\} and Hassan Karimi-Maleh and Gupta, \{Vinod K.\}",

note = "Publisher Copyright: {\textcopyright} 2015 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim.",

year = "2015",

month = jul,

day = "1",

doi = "10.1002/elan.201500040",

language = "English",

volume = "27",

pages = "1766--1773",

journal = "Electroanalysis",

issn = "1040-0397",

publisher = "Wiley-VCH Verlag",

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T1 - A Nanostructure Based Electrochemical Sensor for Square Wave Voltammetric Determination of L-Cysteine in the Presence of High Concentration of Folic Acid

AU - Khalilzadeh, Mohammad A.

AU - Karimi-Maleh, Hassan

AU - Gupta, Vinod K.

PY - 2015/7/1

Y1 - 2015/7/1

N2 - This study describes the development, electrochemical characterization and utilization of 8,9-dihydroxy-7-methyl-12H-benzothiazolo [2,3-b]quinazolin-12-one (DMBQ)/ZnO nanoparticles (ZnO/Nps)-carbon paste electrode (DMBQ/ZnO/NPs/CPE) as a modified sensor for the electrocatalytic determination of cysteine (Cys) in the presence of folic acid (FA). ZnO/NPs was synthesized and characterized by X-ray diffraction (XRD) method. The prepared DMBQ/ZnO/NPs/CPE was developed as a highly sensitive voltammetric sensor for determination of Cys in the presence of FA in real samples. Square wave voltammetry (SWV) of Cys exhibited linear dynamic range with a detection limit (3σ) of 0.05μmol/L.

AB - This study describes the development, electrochemical characterization and utilization of 8,9-dihydroxy-7-methyl-12H-benzothiazolo [2,3-b]quinazolin-12-one (DMBQ)/ZnO nanoparticles (ZnO/Nps)-carbon paste electrode (DMBQ/ZnO/NPs/CPE) as a modified sensor for the electrocatalytic determination of cysteine (Cys) in the presence of folic acid (FA). ZnO/NPs was synthesized and characterized by X-ray diffraction (XRD) method. The prepared DMBQ/ZnO/NPs/CPE was developed as a highly sensitive voltammetric sensor for determination of Cys in the presence of FA in real samples. Square wave voltammetry (SWV) of Cys exhibited linear dynamic range with a detection limit (3σ) of 0.05μmol/L.

KW - Cysteine

KW - Electrocatalytic

KW - Folic acid

KW - Modified electrode

KW - Nanostructure sensor

UR - https://www.scopus.com/pages/publications/84934444300

U2 - 10.1002/elan.201500040

DO - 10.1002/elan.201500040

M3 - Article

AN - SCOPUS:84934444300

SN - 1040-0397

VL - 27

SP - 1766

EP - 1773

JO - Electroanalysis

JF - Electroanalysis

IS - 7

ER -

A Nanostructure Based Electrochemical Sensor for Square Wave Voltammetric Determination of L-Cysteine in the Presence of High Concentration of Folic Acid

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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