Electrical Transport — Sensing interface based on electrodeposited Cu-BTC microporous film for electrochemical detection of the painkiller paracetamol

Measurement evidence

Electrical Transport

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

4 measurement groups · 14 results

Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.

cyclic voltammetry of intrinsic Cu redox transitions

Cu-BTC/GCE, optimised 5 min film · Electrode

CVs recorded in 100 mM KCl over -600 mV to +600 mV vs Ag/AgCl.

Geometry
Cu-BTC/GCE electrode
Context
pristine Cu-BTC film
Measurement source
p004-p005 / 1780-1781 · 3.3 Electrochemical behavior of Cu-BTC grown on a GCE · Fig. 5
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Cu(I)/Cu(0) transition potentialsCu(I) + e- <-> Cu(0): -380 mV / -40 mVText
Exact Reported
p004 / 1780 · 3.3 · Fig. 5
Cu(II)/Cu(I) transition potentialsCu(II) + e- <-> Cu(I): 111 mV / 150 mVText
Exact Reported
p004 / 1780 · 3.3 · Fig. 5

electrochemical impedance spectroscopy (Nyquist fitting)

Bare GCE · Electrode

100 mM KCl containing 5 mM K3[Fe(CN)6]/K4[Fe(CN)6], frequencies 10^-1 to 10^5 Hz.

Geometry
bare GCE electrode
Context
bare substrate control
Measurement source
p005 / 1781 · 3.3 Electrochemical behavior · Table 1
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
constant phase element CPE1.123 x 10^-6 uMhoTable
Exact Reported
p005 / 1781 · 3.3 · Table 1
charge transfer resistance RCT2172.5 +/- 30.5 ohm+/- 30.5 ohmTable
Exact Reported
p005 / 1781 · 3.3 · Table 1
solution resistance Rs11.8 +/- 0.5 ohm+/- 0.5 ohmTable
Exact Reported
p005 / 1781 · 3.3 · Table 1
Warburg element W147.461 x 10^-5 uMhoTable
Exact Reported
p005 / 1781 · 3.3 · Table 1

electrochemical impedance spectroscopy (Nyquist fitting)

Cu-BTC/GCE, optimised 5 min film · Electrode

100 mM KCl containing 5 mM K3[Fe(CN)6]/K4[Fe(CN)6], frequencies 10^-1 to 10^5 Hz.

Geometry
Cu-BTC/GCE electrode
Context
pristine Cu-BTC film
Measurement source
p005 / 1781 · 3.3 Electrochemical behavior · Table 1
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
constant phase element CPE1.131 x 10^-5 uMhoTable
Exact Reported
p005 / 1781 · 3.3 · Table 1
charge transfer resistance RCTMarked as a best value within this paper86.0 +/- 8.6 ohm+/- 8.6 ohmTable
Exact Reported
p005 / 1781 · 3.3 · Table 1
solution resistance Rs14.2 +/- 0.5 ohm+/- 0.5 ohmTable
Exact Reported
p005 / 1781 · 3.3 · Table 1
Warburg element W142.048 x 10^-5 uMhoTable
Exact Reported
p005 / 1781 · 3.3 · Table 1
charge-transfer resistance decrease factorMarked as a best value within this papertwenty-five timesText
Rounded Reported
p008 / 1784 · Conclusions

cyclic voltammetry with ferri/ferrocyanide redox probe

Cu-BTC/GCE, optimised 5 min film · Electrode

100 mM KCl containing 5 mM K3[Fe(CN)6]/K4[Fe(CN)6], scan rate 50 mV s-1; Laviron scan-rate series 10-200 mV s-1 for Ks.

Geometry
Cu-BTC/GCE electrode
Context
pristine Cu-BTC film compared with bare GCE
Measurement source
p004 / 1780 · 3.3 Electrochemical behavior · Fig. 5
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
ferri/ferrocyanide anodic and cathodic current increaseMarked as a best value within this paperincreased by 40%Text
Rounded Reported
p004 / 1780 · 3.3 · Fig. 5
ferri/ferrocyanide peak separation decreaseMarked as a best value within this paperdecreased by 80 mVText
Rounded Reported
p004 / 1780 · 3.3 · Fig. 5
standard electron transfer rate constant improvementMarked as a best value within this paperimproved by 3.55 timesText
Exact Reported
p004 / 1780 · 3.3 · Fig. 5