Voltammetric determination of cysteamine at multiwalled carbon nanotubes paste electrode in the presence of isoproterenol as a mediator

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Voltammetric determination of cysteamine at multiwalled carbon nanotubes paste electrode in the presence of isoproterenol as a mediator

Mohsen Keyvanfard , Maryam Ahmadi , Fatemeh Karimi , Khadijeh Alizad

Citation: Mohsen Keyvanfard, Maryam Ahmadi, Fatemeh Karimi, Khadijeh Alizad. Voltammetric determination of cysteamine at multiwalled carbon nanotubes paste electrode in the presence of isoproterenol as a mediator[J]. Chinese Chemical Letters, 2014, 25(9): 1244-1246. doi: 10.1016/j.cclet.2014.05.018 shu

shu

Voltammetric determination of cysteamine at multiwalled carbon nanotubes paste electrode in the presence of isoproterenol as a mediator

通讯作者: Mohsen Keyvanfard,
Fatemeh Karimi,

摘要: A sensitive electrochemical sensor for the determination of cysteamine (CA) was developed using a modified multiwall carbon nanotube paste electrode (MWCNTPE) with isoproterenol (ISPT) as a mediator. This modified electrode showed very high electrocatalytic activity for the anodic oxidation of CA. Under the optimized conditions, the electrocatalytic peak current showed a linear relationship with CA concentration in the range of 0.3-450.0 μmol/L with a detection limit of 0.09 μmol/L CA. The modified electrode was used for the determination of CA in real samples such as urine and drug samples.

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English

Voltammetric determination of cysteamine at multiwalled carbon nanotubes paste electrode in the presence of isoproterenol as a mediator

1.
a Department of Chemistry, Majlesi Branch, Islamic Azad University, Isfahan, Iran;
2.
b Department of Chemistry, Shahreza Branch, Islamic Azad University, Isfahan, Iran

Corresponding author: Mohsen Keyvanfard, Fatemeh Karimi,

Received Date: 13 February 2014

Abstract: A sensitive electrochemical sensor for the determination of cysteamine (CA) was developed using a modified multiwall carbon nanotube paste electrode (MWCNTPE) with isoproterenol (ISPT) as a mediator. This modified electrode showed very high electrocatalytic activity for the anodic oxidation of CA. Under the optimized conditions, the electrocatalytic peak current showed a linear relationship with CA concentration in the range of 0.3-450.0 μmol/L with a detection limit of 0.09 μmol/L CA. The modified electrode was used for the determination of CA in real samples such as urine and drug samples.

Key words:

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