Research Article
Voltammetric Determination of Uric Acid in Clinical Serum Samples Using DMF Modified Screen Printed Carbon Electrodes
Table 2
Accuracy of UA detection with the developed sensor evaluated through determination of percent recovery.
| Sample | Signal (peak current (µA)x10) | Concentration of uric acid added (µM) | % Recovery | E1 | E2 | E3 | Mean | Spiked | Expected UA (µM) | Found UA (µM) |
| Serum sample | 1.02 | 1.15 | 1.05 | 1.17 | 0.00 | - - - - - | 13.7 ± 0.125 | - - - - - | 2.67 | 2.69 | 2.57 | 2.64 | 36.3 | 49.05 | 52.67 ± 0.013 | 107.33 ± 1.12 | 5.28 | 5.30 | 5.29 | 5.30 | 0.00 | - - - - - - - | 213.7 ± 0.017 | - - - - - - - | 5.48 | 5.46 | 5.44 | 5.46 | 36.3 | 250 | 247.7 ± 0.0125 | 93.7 ± 2.35 |
|
|
(52.67-13.7)x100%/36.3; (230.7-213.7)x100%/36.3. |