Research Article
Embedded Based Miniaturized Universal Electrochemical Sensing Platform
Table 2
Measurement results of the second test.
| Actual concentration (ppm) | Test concentration (ppm) | Absolute error (ppm) |
| 1 | 3 | 2 | 5 | 5 | 0 | 10 | 11 | 1 | 20 | 16 | 4 | 30 | 28 | 2 | 50 | 43 | 7 | 75 | 64 | 11 | 100 | 92 | 8 | 150 | 139 | 11 |
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