A Simple Route of Modifying Copper Electrodes for the Determination of Methanol and Ethylene Glycol
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Bibliographic record
Abstract
Abstract Copper foil electrodes were modified in a stirred NaOH solution at room temperature. Measurements with scanning electron microscopy, energy‐dispersive X‐ray spectroscopy and X‐ray photoelectron spectroscopy confirmed the simultaneous structural transformation and chemical modification of the foil surface. The as‐prepared electrodes produced isolated anodic peaks in the cyclic voltammogram of methanol or ethylene glycol in alkaline solution. The highest anodic peak current was achieved at the electrode that was modified for 5 hours. Amperometric study illustrates that the modified electrode can detect lower than 100 µM methanol with a sensitivity of 15.8 µA/mM or 10 µM ethylene glycol with a sensitivity of 193 µA/mM. Importantly, the method is robust and the prepared electrodes show great reproducibility.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it