Nano-Structured Ni(II)–Baicalein Modified Multiwall Carbon Nanotube Paste Electrode for the Electrocatalytic Oxidation of Hydroxylamine

Catalytic Rate Constant ◽

Paste Electrode ◽

A nano-structured Ni(II)–baicalein(BA) film is electrodeposited on a multiwall carbon nanotube paste electrode in alkaline solution. The modified electrode shows electrocatalytic activity toward the oxidation of hydroxylamine. Kinetic parameters such as the electron transfer coefficient α, rate constant ks of the electrode reaction and the catalytic rate constant kcat of the catalytic reaction are determined. The catalytic currents present linear dependence on the concentration of hydroxylamine from 2.5×10-6 mol•L-1 to 4.0×10-4 mol•L-1 by amperometry. The detection limit and sensitivity are 6.0×10-7 mol•L-1 and 31.2 mA•L•mol-1, respectively. The modified electrode has been applied to determine hydroxylamine in water samples with satisfactory results.

Nickel(II)–baicalein complex modified multiwall carbon nanotube paste electrode and its electrocatalytic oxidation toward glycine

Analytical Biochemistry ◽

10.1016/j.ab.2009.05.002 ◽

2009 ◽

Vol 391 (1) ◽

pp. 56-63 ◽

Cited By ~ 24

Author(s):

Li Zheng ◽

Jun-Feng Song

Keyword(s):

Carbon Nanotube ◽

Electrocatalytic Oxidation ◽

Paste Electrode ◽

Voltammetric Determination of Homocysteine Using Multiwall Carbon Nanotube Paste Electrode in the Presence of Chlorpromazine as a Mediator

Journal of Analytical Methods in Chemistry ◽

10.1155/2012/902184 ◽

2012 ◽

Vol 2012 ◽

pp. 1-7 ◽

Cited By ~ 8

Author(s):

Fathali Gholami-Orimi ◽

Farshad Taleshi ◽

Pourya Biparva ◽

Hassan Karimi-Maleh ◽

Hadi Beitollahi ◽

...

Keyword(s):

Carbon Nanotube ◽

Dynamic Range ◽

Voltammetric Determination ◽

Catalytic Rate Constant ◽

Double Potential Step Chronoamperometry ◽

Paste Electrode ◽

We propose chlorpromazine (CHP) as a new mediator for the rapid, sensitive, and highly selective voltammetric determination of homocysteine (Hcy) using multiwall carbon nanotube paste electrode (MWCNTPE). The experimental results showed that the carbon nanotube paste electrode has a highly electrocatalytic activity for the oxidation of Hcy in the presence of CHP as a mediator. Cyclic voltammetry, double potential step chronoamperometry, and square wave voltammetry (SWV) are used to investigate the suitability of CHP at the surface of MWCNTPE as a mediator for the electrocatalytic oxidation of Hcy in aqueous solutions. The kinetic parameters of the system, including electron transfer coefficient, and catalytic rate constant were also determined using the electrochemical approaches. In addition, SWV was used for quantitative analysis. SWV showed wide linear dynamic range (0.1–210.0 μM Hcy) with a detection limit of 0.08 μM Hcy. Finally, this method was also examined as a selective, simple, and precise electrochemical sensor for the determination of Hcy in real samples.

Electrochemical Sensor Based on Multiwall Carbon Nanotube-Paste Electrode for Determination of Promethazine in Pharmaceutical Formulations and Blood Plasma

Journal of Advanced Medical Sciences and Applied Technologies ◽

10.18869/nrip.jamsat.1.1.61 ◽

2015 ◽

Vol 1 (1) ◽

pp. 61 ◽

Cited By ~ 1

Author(s):

Ebrahim Honarmand ◽

Mohammad Hassan Motaghedifard ◽

Ali Mohammad Amani

Keyword(s):

Carbon Nanotube ◽

Blood Plasma ◽

Electrochemical Sensor ◽

Pharmaceutical Formulations ◽

Paste Electrode ◽

Simultaneous determination of cysteamine and folic acid in pharmaceutical and biological samples using modified multiwall carbon nanotube paste electrode

Chinese Chemical Letters ◽

10.1016/j.cclet.2011.10.023 ◽

2012 ◽

Vol 23 (2) ◽

pp. 237-240 ◽

Cited By ~ 29

Author(s):

Ali Taherkhani ◽

Hassan Karimi-Maleh ◽

Ali A. Ensafi ◽

Hadi Beitollahi ◽

Ahmad Hosseini ◽

...

Keyword(s):

Folic Acid ◽

Carbon Nanotube ◽

Simultaneous Determination ◽

Biological Samples ◽

Paste Electrode ◽

A Voltammetric Sensor for the Simultaneous Determination of L-Cysteine and Tryptophan Using a p-Aminophenol-Multiwall Carbon Nanotube Paste Electrode

Analytical Sciences ◽

10.2116/analsci.27.409 ◽

2011 ◽

Vol 27 (4) ◽

pp. 409 ◽

Cited By ~ 39

Author(s):

Ali A. ENSAFI ◽

Samira DADKHAH-TEHRANI ◽

Hassan KARIMI-MALEH

Keyword(s):

Carbon Nanotube ◽

Simultaneous Determination ◽

Voltammetric Sensor ◽

Paste Electrode ◽

A sensitive electrochemical sensor for hydroxylamine determination: Using multiwall carbon nanotube paste electrode (MWCNTPE) and promazine hydrochloride as homogenous mediator

Sensors and Actuators B Chemical ◽

10.1016/j.snb.2015.01.071 ◽

2015 ◽

Vol 211 ◽

pp. 138-145 ◽

Cited By ~ 12

Author(s):

B. Rezaei ◽

A.A. Ensafi ◽

E. Jamshidi-mofrad

Keyword(s):

Carbon Nanotube ◽

Electrochemical Sensor ◽

Paste Electrode ◽

Electrocatalytic determination of cysteamine using multiwall carbon nanotube paste electrode in the presence of 3,4-dihydroxycinnamic acid as a homogeneous mediator

Journal of the Brazilian Chemical Society ◽

10.1590/s0103-50532013000100006 ◽

2013 ◽

Vol 24 (1) ◽

pp. 32-39 ◽

Cited By ~ 18

Author(s):

Mohsen Keyvanfard ◽

Samad Sami ◽

Hassan Karimi-Maleh ◽

Khadijeh Alizad

Keyword(s):

Carbon Nanotube ◽

Electrocatalytic Determination ◽

Paste Electrode ◽

Determination of diethofencarb (isopropyl 3,4-diethoxyphenylcarbamate) by square wave voltammetry using a multiwall carbon nanotube paste electrode

Analytical Methods ◽

10.1039/c5ay02007g ◽

2015 ◽

Vol 7 (19) ◽

pp. 8373-8378 ◽

Cited By ~ 4

Author(s):

Nur AKBAŞ ◽

Recai İNAM

Keyword(s):

Carbon Nanotube ◽

Square Wave Voltammetry ◽

Anodic Peak ◽

Square Wave ◽

Wave Voltammetry ◽

Paste Electrode ◽

A new sensitive square wave anodic peak at +861 mV obtained using a newly prepared carbon nanotube electrode provided determination of the fungicide diethofencarb.