Square wave voltammetric analysis of carbidopa based on carbon paste electrode modified with ZnO/CNTs nanocomposite and n-hexyl-3-methylimidazolium hexafluoro phosphate ionic liquid

Vinod Kumar Gupta; Saeed Rostami; Hassan Karimi-Male; Fatemeh Karimi; Mohsen Keyvanfard; Tawfik A. Saleh

Square wave voltammetric analysis of carbidopa based on carbon paste electrode modified with ZnO/CNTs nanocomposite and n-hexyl-3-methylimidazolium hexafluoro phosphate ionic liquid

Vinod Kumar Gupta^*
, Saeed Rostami
, Hassan Karimi-Male
, Fatemeh Karimi
, Mohsen Keyvanfard
, Tawfik A. Saleh

^*Corresponding author for this work

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

13 Scopus citations

Abstract

In this study the electrochemistry of carbidopa (CD) was studied by electrochemical methods at a carbon paste electrode modified by ZnO/CNTs nanocomposite and room-temperature ionic liquid, n-hexyl-3-methylimidazolium hexafluoro phosphate (ZnO/CNTs/ILs/CPE). The oxidation peak potential of the CD at a surface of ZnO/CNTs/ILs/CPE appeared at 570 mV that was about 90 mV lower than the oxidation peak potential at the surface of the unmodified carbon paste electrode (CPE) under similar condition. Under the optimized conditions, the oxidation peak current of CD showed two linear dynamic ranges (in 0.09-450 μmol L^-1) with a detection limit of 0.05 μmol L^-1, using square wave voltammetry (SWV). The proposed sensor was successfully applied for the determination of CD in real samples such as pharmaceutical serum, water and urine.

Original language	English
Pages (from-to)	1517-1528
Number of pages	12
Journal	International Journal of Electrochemical Science
Volume	10
Issue number	2
State	Published - 2015

Bibliographical note

Publisher Copyright:
© 2015 The Authors.

Keywords

Carbidopa
N-hexyl-3-methylimidazolium hexafluoro phosphate
Square wave voltammetry
ZnO/CNTs nanocomposite

ASJC Scopus subject areas

Electrochemistry

Cite this

@article{851df5bb217d44cda896ef6be34e0474,

title = "Square wave voltammetric analysis of carbidopa based on carbon paste electrode modified with ZnO/CNTs nanocomposite and n-hexyl-3-methylimidazolium hexafluoro phosphate ionic liquid",

abstract = "In this study the electrochemistry of carbidopa (CD) was studied by electrochemical methods at a carbon paste electrode modified by ZnO/CNTs nanocomposite and room-temperature ionic liquid, n-hexyl-3-methylimidazolium hexafluoro phosphate (ZnO/CNTs/ILs/CPE). The oxidation peak potential of the CD at a surface of ZnO/CNTs/ILs/CPE appeared at 570 mV that was about 90 mV lower than the oxidation peak potential at the surface of the unmodified carbon paste electrode (CPE) under similar condition. Under the optimized conditions, the oxidation peak current of CD showed two linear dynamic ranges (in 0.09-450 μmol L-1) with a detection limit of 0.05 μmol L-1, using square wave voltammetry (SWV). The proposed sensor was successfully applied for the determination of CD in real samples such as pharmaceutical serum, water and urine.",

keywords = "Carbidopa, N-hexyl-3-methylimidazolium hexafluoro phosphate, Square wave voltammetry, ZnO/CNTs nanocomposite",

author = "Gupta, \{Vinod Kumar\} and Saeed Rostami and Hassan Karimi-Male and Fatemeh Karimi and Mohsen Keyvanfard and Saleh, \{Tawfik A.\}",

note = "Publisher Copyright: {\textcopyright} 2015 The Authors.",

year = "2015",

language = "English",

volume = "10",

pages = "1517--1528",

journal = "International Journal of Electrochemical Science",

issn = "1452-3981",

publisher = "Elsevier B.V.",

number = "2",

}

Square wave voltammetric analysis of carbidopa based on carbon paste electrode modified with ZnO/CNTs nanocomposite and n-hexyl-3-methylimidazolium hexafluoro phosphate ionic liquid. / Gupta, Vinod Kumar; Rostami, Saeed; Karimi-Male, Hassan et al.
In: International Journal of Electrochemical Science, Vol. 10, No. 2, 2015, p. 1517-1528.

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

TY - JOUR

T1 - Square wave voltammetric analysis of carbidopa based on carbon paste electrode modified with ZnO/CNTs nanocomposite and n-hexyl-3-methylimidazolium hexafluoro phosphate ionic liquid

AU - Gupta, Vinod Kumar

AU - Rostami, Saeed

AU - Karimi-Male, Hassan

AU - Karimi, Fatemeh

AU - Keyvanfard, Mohsen

AU - Saleh, Tawfik A.

PY - 2015

Y1 - 2015

N2 - In this study the electrochemistry of carbidopa (CD) was studied by electrochemical methods at a carbon paste electrode modified by ZnO/CNTs nanocomposite and room-temperature ionic liquid, n-hexyl-3-methylimidazolium hexafluoro phosphate (ZnO/CNTs/ILs/CPE). The oxidation peak potential of the CD at a surface of ZnO/CNTs/ILs/CPE appeared at 570 mV that was about 90 mV lower than the oxidation peak potential at the surface of the unmodified carbon paste electrode (CPE) under similar condition. Under the optimized conditions, the oxidation peak current of CD showed two linear dynamic ranges (in 0.09-450 μmol L-1) with a detection limit of 0.05 μmol L-1, using square wave voltammetry (SWV). The proposed sensor was successfully applied for the determination of CD in real samples such as pharmaceutical serum, water and urine.

AB - In this study the electrochemistry of carbidopa (CD) was studied by electrochemical methods at a carbon paste electrode modified by ZnO/CNTs nanocomposite and room-temperature ionic liquid, n-hexyl-3-methylimidazolium hexafluoro phosphate (ZnO/CNTs/ILs/CPE). The oxidation peak potential of the CD at a surface of ZnO/CNTs/ILs/CPE appeared at 570 mV that was about 90 mV lower than the oxidation peak potential at the surface of the unmodified carbon paste electrode (CPE) under similar condition. Under the optimized conditions, the oxidation peak current of CD showed two linear dynamic ranges (in 0.09-450 μmol L-1) with a detection limit of 0.05 μmol L-1, using square wave voltammetry (SWV). The proposed sensor was successfully applied for the determination of CD in real samples such as pharmaceutical serum, water and urine.

KW - Carbidopa

KW - N-hexyl-3-methylimidazolium hexafluoro phosphate

KW - Square wave voltammetry

KW - ZnO/CNTs nanocomposite

UR - https://www.scopus.com/pages/publications/84921684267

M3 - Article

AN - SCOPUS:84921684267

SN - 1452-3981

VL - 10

SP - 1517

EP - 1528

JO - International Journal of Electrochemical Science

JF - International Journal of Electrochemical Science

IS - 2

ER -

Square wave voltammetric analysis of carbidopa based on carbon paste electrode modified with ZnO/CNTs nanocomposite and n-hexyl-3-methylimidazolium hexafluoro phosphate ionic liquid

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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