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A Sensitive Voltammetric Sensor for Determination of Glutathione Based on Multiwall Carbon Nanotubes Paste Electrode Incorporating Pyrogallol Red
| Content Provider | Semantic Scholar |
|---|---|
| Author | Keyvanfard, Mohsen Alizad, Khadijeh |
| Copyright Year | 2014 |
| Abstract | A new sensitive and selective electrochemical sensor was developed for determination of glutathione (GSH) at the surface of carbon paste electrode (CPE) modified with multi-wall carbon nanotubes (MWCNTs) as a sensor and pyrogallol red (PGR) as a mediator. The mechanism of GSH electrochemical behavior at the modified electrode surface was investigated by various electrochemical techniques including chronoamperometry, cyclic voltammetry (CV) and square wave voltammetry (SWV). A linear calibration curve was obtained in the concentration range of GSH of 0.3-500 µmol L -1 , with a limit of detection of 0.19 µmol L -1 . The method was applied to the determination of GSH in urine samples with satisfactory results. |
| Starting Page | 593 |
| Ending Page | 599 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.13005/ojc/300226 |
| Volume Number | 30 |
| Alternate Webpage(s) | http://www.orientjchem.org/pdf/vol30no2/OJCV030I02P593-599.pdf |
| Alternate Webpage(s) | https://doi.org/10.13005/ojc%2F300226 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |