Measurement evidence
Sensing interface based on electrodeposited Cu-BTC microporous film for electrochemical detection of the painkiller paracetamol · Tien Dat N., Ngoc Tien N., Ngan N.T.T. et al. · Analyst · 2023 · 1777-1785
Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.
Bare GCE · Electrode
SWV paracetamol calibration in the same 10-50 uM range as Cu-BTC/GCE.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| linear concentration range | 10-50 uM | — | — | Table Range | p007 / 1783 · 3.5 · Table 2 |
| paracetamol limit of detection | 0.2030 uM | — | — | Table Exact Reported | p007 / 1783 · 3.5 · Table 2 |
| paracetamol sensitivity | 0.481 uA uM-1 cm-2 | — | — | Table Exact Reported | p007 / 1783 · 3.5 · Table 2 |
Cu-BTC/GCE, optimised 5 min film · Electrode
SWV in potential range +200 to +700 mV; paracetamol concentration 10-50 uM for calibration.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| SWV calibration equationMarked as a best value within this paper | I (uA) = 0.0697 C (uM) - 0.1868; R2 = 0.9977 | — | — | Text Rounded Reported | p007 / 1783 · 3.5 · Fig. 7 |
| linear concentration rangeMarked as a best value within this paper | 10-50 uM | — | — | Table Range | p007 / 1783 · 3.5 · Table 2 |
| paracetamol limit of detectionMarked as a best value within this paper | 0.0770 uM | — | — | Table Exact Reported | p007 / 1783 · 3.5 · Table 2 |
| paracetamol sensitivityMarked as a best value within this paper | 0.996 uA uM-1 cm-2 | — | — | Table Exact Reported | p007 / 1783 · 3.5 · Table 2 |
Bare GCE · Electrode
1 mM paracetamol in PBS buffer at pH 7.4, scan rate 50 mV s-1.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| paracetamol pseudo-reversible peak separation | 642 mV | — | — | Text Exact Reported | p005 / 1781 · 3.4 · Fig. 6 |
Cu-BTC/GCE, optimised 5 min film · Electrode
1 mM paracetamol in PBS buffer at pH 7.4, scan rate 50 mV s-1.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| current intensity improvement in paracetamol CV | 15% | — | — | Text Rounded Reported | p005 / 1781 · 3.4 · Fig. 6 |
| paracetamol pseudo-reversible peak separationMarked as a best value within this paper | 88 mV | — | — | Text Exact Reported | p005 / 1781 · 3.4 · Fig. 6 |
| reported thermodynamic energy for paracetamol oxidation | Delta G = 245.91 kcal mol-1 | — | — | Text Exact Reported | p005 / 1781 · 3.4 · Scheme 2 |
Cu-BTC/GCE, optimised 5 min film · Electrode
1 mM paracetamol solutions at pH 5 to 9; SI Fig. 5S compares Cu-BTC/GCE and GCE.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Epa(pH) slope | -0.0468 | — | — | Text Exact Reported | p007 / 1783 · 3.4 · Fig. 5S |
| optimal pH for paracetamol oxidationMarked as a best value within this paper | neutral pH | — | neutral; pH 7.4 also included in measurements | Text Approximate | p007 / 1783 · 3.4 · Fig. 5S |
Cu-BTC/GCE, optimised 5 min film · Electrode
1 mg traditional painkiller powder dissolved in 10 mL PBS buffer; SWV recorded on Cu-BTC/GCE.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| paracetamol content in traditional painkiller | 26.9 mg g-1 | — | — | Text Exact Reported | p007 / 1783 · 3.5 |
Cu-BTC/GCE, optimised 5 min film · Electrode
Five Cu-BTC/GCE sensors analysed under identical SWV conditions.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| sensor reproducibility RSDMarked as a best value within this paper | 1.6% | — | — | Text Exact Reported | p007 / 1783 · 3.5 |
Cu-BTC/GCE, optimised 5 min film · Electrode
Scan rates from 10 to 200 mV s-1; SI Fig. 6S.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| scan-rate dependence mechanism | anodic and cathodic currents proportional to square root of scan rate; diffusion-based process | — | — | Text Qualitative | p007 / 1783 · 3.4 · Fig. 6 |
| scan-rate range | 10 to 200 mV s-1 | — | — | Text Range | p007 / 1783 · 3.4 · Fig. 6S |
Cu-BTC/GCE, 15 min film · Electrode
SI Fig. 8S compares GCE, Cu-BTC 5 minutes and Cu-BTC 15 minutes for paracetamol calibration.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| 15 min Cu-BTC calibration R-square | 0.99691 | — | — | SI Table Exact Reported | p005 · SI · Fig. 8S |
| 15 min Cu-BTC calibration slope | 0.07478 +/- 0.0017 uA uM-1 | — | +/- 0.0017 uA uM-1 | SI Table Exact Reported | p005 · SI · Fig. 8S |
| effect of increasing synthesis time | no significant improvement in recorded signals | — | — | Text Qualitative | p007 / 1783 · 3.5 · Fig. 8S |