An amperometric sensor for <img src='http://www.niscair.res.in/jinfo/small.gif' border=0>-ascorbic acid based on graphite paste electrode
IR@NISCAIR: CSIR-NISCAIR, New Delhi - ONLINE PERIODICALS REPOSITORY (NOPR)
View Archive Info| Field | Value | |
| Title |
An amperometric sensor for <img src='http://www.niscair.res.in/jinfo/small.gif' border=0>-ascorbic acid based on graphite paste electrode
|
|
| Creator |
Pandey, P C
Pandey, V Mehta, S |
|
| Description |
701-703
An amperometric sensor for <img src='http://www.niscair.res.in/jinfo/small.gif' border=0>-ascorbic acid based on graphite paste electrode with and without incorporating tetracyanoquinodimethane (TCNQ) is described. DC cyclic voltammetry indicates that <img src='http://www.niscair.res.in/jinfo/small.gif' border=0>-ascorbic acid can be oxidized at very low potential (0 mV vs SCE). DC cyclic voltammetry of TCNQ modified graphite paste electrode shows two anodic peaks for the oxidation of -ascorbic acid due to diffusion current and catalytic current. The catalytic wave is obtained due to the mediated mechanism of electron exchange through TCNQ. The second order rate constant (0.14 x 10<sup>4</sup> 1 mol<sup>-1</sup> s<sup>-1</sup>) for the reaction between <img src='http://www.niscair.res.in/jinfo/small.gif' border=0>-ascorbic acid and TCNQ has also been calculated. The TCNQ modified electrode shows long term stability. |
|
| Date |
2018-03-20T11:18:37Z
2018-03-20T11:18:37Z 1993-08 |
|
| Type |
Article
|
|
| Identifier |
0975-0975(Online); 0376-4710(Print)
http://nopr.niscair.res.in/handle/123456789/43947 |
|
| Language |
en_US
|
|
| Rights |
<img src='http://nopr.niscair.res.in/image/cc-license-sml.png'> <a href='http://creativecommons.org/licenses/by-nc-nd/2.5/in' target='_blank'>CC Attribution-Noncommercial-No Derivative Works 2.5 India</a>
|
|
| Publisher |
NISCAIR-CSIR, India
|
|
| Source |
IJC-A Vol.32A(08) [August 1993]
|
|