Amperometric Determination of L-Ascorbic Acid Using Copper Hexacyanoferrate Nanoparticles Modified Electrode

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.591.77 ◽

2014 ◽

Vol 591 ◽

pp. 77-80

Author(s):

R.A. Kalaivani ◽

S. Sriman Narayanan

Keyword(s):

Ascorbic Acid ◽

Modified Electrode ◽

Electrocatalytic Activity ◽

Supporting Electrolyte ◽

Copper Hexacyanoferrate ◽

Amperometric Determination ◽

New Approach ◽

Good Electrocatalytic Activity ◽

Hydrodynamic Voltammetry

A new approach was attempted to prepare a chemically modified electrode using copper hexacyanoferrate (CuHCF) nanoparticles as the redox mediator and to study its stability and electrocatalytic activity for ascorbic acid (AA) oxidation. The CuHCF modified electrode was prepared and characterized using cyclic voltammetry. The effect of scan rate, supporting electrolyte and pH of the medium on the performance of the modified electrode was investigated. The CuHCF modified electrode exhibited good electrocatalytic activity towards the oxidation of ascorbic acid and gavea linear response4×106M to 4.9×10-4M with a correlation coefficient of 0.995). Hydrodynamic voltammetry and chronoamperometry studies for the oxidation of ascorbic acid were also carried out. The electrode was highly stable and exhibited good reproducibility. This modified electrode was also applied for the determination of ascorbic acid in commercial samples.

Download Full-text

Amperometric determination of ascorbic acid at a ferricyanide-doped Tosflex-modified electrode

Electrochemistry Communications ◽

10.1016/s1388-2481(00)00121-1 ◽

2000 ◽

Vol 2 (11) ◽

pp. 782-785 ◽

Cited By ~ 36

Author(s):

Jyh-Myng Zen ◽

Dong-Mung Tsai ◽

Annamalai Senthil Kumar ◽

Venkataraman Dharuman

Keyword(s):

Ascorbic Acid ◽

Modified Electrode ◽

Amperometric Determination

Download Full-text

Direct amperometric determination of l-ascorbic acid (Vitamin C) at octacyanomolybdate-doped-poly(4-vinylpyridine) modified electrode in fruit juice and pharmaceuticals

Sensors and Actuators B Chemical ◽

10.1016/j.snb.2006.03.048 ◽

2007 ◽

Vol 120 (2) ◽

pp. 745-753 ◽

Cited By ~ 56

Author(s):

R. Thangamuthu ◽

S.M. Senthil Kumar ◽

K. Chandrasekara Pillai

Keyword(s):

Ascorbic Acid ◽

Vitamin C ◽

Modified Electrode ◽

Fruit Juice ◽

Amperometric Determination

Download Full-text

Low Potential Amperometric Determination of Ascorbic Acid at a Single-Wall Carbon Nanotubes-Dihexadecyl Hydrogen Phosphate Composite Film Modified Electrode

Bulletin of the Korean Chemical Society ◽

10.5012/bkcs.2005.26.9.1403 ◽

2005 ◽

Vol 26 (9) ◽

pp. 1403-1409 ◽

Cited By ~ 7

Keyword(s):

Carbon Nanotubes ◽

Ascorbic Acid ◽

Composite Film ◽

Modified Electrode ◽

Single Wall Carbon Nanotubes ◽

Hydrogen Phosphate ◽

Amperometric Determination ◽

Single Wall Carbon ◽

Dihexadecyl Hydrogen Phosphate

Download Full-text

Gold Nanoparticles Modified Titania Nanotube Arrays for Amperometric Determination of Ascorbic Acid

Analytical Letters ◽

10.1080/00032711003725615 ◽

2010 ◽

Vol 43 (18) ◽

pp. 2809-2822 ◽

Cited By ~ 14

Author(s):

T. G. Satheesh Babu ◽

P. V. Suneesh ◽

T. Ramachandran ◽

Bipin Nair

Keyword(s):

Gold Nanoparticles ◽

Ascorbic Acid ◽

Nanotube Arrays ◽

Amperometric Determination ◽

Titania Nanotube Arrays ◽

Titania Nanotube

Download Full-text

Amperometric determination of morphine on cobalt hexacyanoferrate modified electrode in rat brain microdialysates

Talanta ◽

10.1016/s0039-9140(02)00312-0 ◽

2002 ◽

Vol 58 (3) ◽

pp. 427-432 ◽

Cited By ~ 50

Author(s):

F Xu

Keyword(s):

Rat Brain ◽

Modified Electrode ◽

Amperometric Determination ◽

Cobalt Hexacyanoferrate

Download Full-text

Chloroperoxidase Modified Electrode for Amperometric Determination of 2,4,6-Trichlorophenol

Electroanalysis ◽

10.1002/elan.200804545 ◽

2009 ◽

Vol 21 (12) ◽

pp. 1348-1353 ◽

Cited By ~ 13

Author(s):

Goretti Díaz-Díaz ◽

M. Carmen Blanco-López ◽

M. Jesús Lobo-Castañón ◽

Arturo J. Miranda-Ordieres ◽

Paulino Tuñón-Blanco

Keyword(s):

Modified Electrode ◽

Amperometric Determination

Download Full-text

g-C3N4 nanofibers doped poly(3,4-ethylenedioxythiophene) modified electrode for simultaneous determination of ascorbic acid and acetaminophen

Journal of Electroanalytical Chemistry ◽

10.1016/j.jelechem.2018.07.025 ◽

2018 ◽

Vol 824 ◽

pp. 52-59 ◽

Cited By ~ 21

Author(s):

Caiwei Li ◽

Jianhua Xu ◽

Yuting Wu ◽

Yuehua Zhang ◽

Cheng Zhang ◽

...

Keyword(s):

Ascorbic Acid ◽

Simultaneous Determination ◽

Modified Electrode

Download Full-text

Electrochemical determination of ascorbic acid at p-phenylenediamine film-holes modified glassy carbon electrode

Journal of the Serbian Chemical Society ◽

10.2298/jsc141104006o ◽

2015 ◽

Vol 80 (9) ◽

pp. 1161-1175 ◽

Cited By ~ 2

Author(s):

Bikila Olana ◽

Shimeles Kitte ◽

Tesfaye Soreta

Keyword(s):

Ascorbic Acid ◽

Detection Limit ◽

Glassy Carbon Electrode ◽

Modified Electrode ◽

Glassy Carbon ◽

Linear Response ◽

Modified Electrodes ◽

Electrochemical Determination ◽

Carbon Electrode

In this work the determination of ascorbic acid (AA) at glassy carbon electrode (GCE) modified with a perforated film produced by reduction of diazonium generated in situ from p-phenylenediamine (PD) is reported. Holes were intentionally created in the modifier film by stripping a pre-deposited gold nanoparticles. The modified electrodes were electrochemically characterized by common redox probes: hydroquinone, ferrocyanide and hexamineruthenium(III). The cyclic voltammetric and amperometric response of AA using the modified electrodes was compared with that of bare GCE. The bare GCE showed a linear response to AA in the concentration range of 5 mM to 45 mM with detection limit of 1.656 mM and the modified GCE showed a linear response to AA in the concentration range of 5 ?M to 45 ?M with detection limit of 0.123 ?M. The effect of potential intereferents on amperometric signal of AA at the modified GCE was examined and found to be minimal. The inter-electrode reproducibility, stability, and accuracy were determined. The modified electrode showed excellent inter-electrode reproducibility, accuracy and stability. The modified electrode reported is a promising candidate for use in electroanalysis of AA.

Download Full-text