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Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.49A [2010] >
IJC-A Vol.49A(08) [August 2010] >
| Title: | Electrochemical reduction of tartrazine at multi-walled carbon nanotube-modified pyrolytic graphite electrode |
| Authors: | Song, Y Z
Xu, J M
Lv, J S
Zhong, H
Ye, Y
Xie, J M |
| Keywords: | Electrochemistry
Cyclic voltammetry
Carbon nanotubes
Pyrolytic graphite electrode
Reductions
Dyes
Azo compounds |
| Issue Date: | Aug-2010 |
| Publisher: | CSIR |
| IPC Code: | Int. Cl.9 B82B1/00; GOIN27/00; H01M4/00 |
| Abstract: | The electrochemical reduction of tartrazine at a multiwalled carbon nanotube-modified pyrolytic graphite electrode is investigated
by cyclic voltammetry. A simple,
sensitive and inexpensive method for determination of tartrazine is proposed. The
accuracy and reproducibility of the determination method have been evaluated. On using the MWCNT/PGE daily and storing under ambient
conditions over a period of 2 weeks, the electrode has retained 96.3 % of its
initial peak current response for a tartrazine concentration of 50.0 mg L-1.
The relative standard deviation for the peak current based on six replicates is
1.2 %, This
method has been satisfactorily applied for the determination of tartrazine in real
samples in the concentration range of
2.0 – 70.0 mg L-1 and 70.0 – 230.0 mg L-1, with a detection limit of 0.5 mg L-1 |
| Page(s): | 1030-1034 |
| Source: | IJC-A Vol.49A(08) [August 2010]
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