Electrochemistry Application — Aggregation-induced enhancement of pyrene-based metal-organic framework as a new electrochemiluminescence emitter for ultrasensitive detection of sulfadimethoxine

Measurement evidence

Electrochemistry Application

Aggregation-induced enhancement of pyrene-based metal-organic framework as a new electrochemiluminescence emitter for ultrasensitive detection of sulfadimethoxine · Liu J., Mu Z., Zhou J. et al. · Food Chemistry · 2024 · 137270

4 measurement groups · 12 results

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

CV scan-rate series with Randles-Sevcik analysis

Ce-MOF/GCE · Electrode

Bare GCE and Ce-MOF/GCE measured in 5 mM K3[Fe(CN)6]/K4[Fe(CN)6] with KCl; scan rates 0.01-0.20 V s-1.

Geometry
4 mm GCE; three-electrode electrochemical system
Context
Ce-MOF-modified electrode compared with bare GCE
Measurement source
Electrochemical property of Ce-MOF · Fig. S3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Electroactive area of bare GCE0.1369 cm2Text
Exact Reported
Electrochemical property of Ce-MOF · Fig. S3
Bare GCE Randles-Sevcik slopeIpa = 507.70 v1/2 + 22.19Figure Axis
Exact Reported
9 · S7 Electrochemical property of Ce-MOF · Fig. S3A
Ce-MOF/GCE electroactive area relative to bare GCE0.2125/0.1369 = 1.55Calculated From Reported
Rounded Reported
Electrochemical property of Ce-MOF · Fig. S3
Electroactive area of Ce-MOF/GCEMarked as a best value within this paper0.2125 cm2Text
Exact Reported
Electrochemical property of Ce-MOF · Fig. S3
Ce-MOF/GCE Randles-Sevcik slopeMarked as a best value within this paperIpa = 788.07 v1/2 + 10.38Figure Axis
Exact Reported
9 · S7 Electrochemical property of Ce-MOF · Fig. S3B
CV scan-rate range for electroactive area0.01-0.20 V s-1reported range; numeric midpointText
Range
9 · S7 Electrochemical property of Ce-MOF · Fig. S3

CV and ECL mechanism study

ZPM/GCE · Electrode

Bare GCE and ZPM/GCE in PBS with and without 0.05 M K2S2O8.

Geometry
modified GCE
Context
ZPM electrode with K2S2O8 co-reactant
Measurement source
5 · 3.5 ECL mechanism of the ZPM/K2S2O8 systems · Fig. 3C-D
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
K2S2O8 boosts ZPM ECLZPM had a better ECL signal with the addition of K2S2O8Text
Qualitative
5 · 3.5 ECL mechanism of the ZPM/K2S2O8 systems · Fig. 3D
K2S2O8 reduction peak on bare GCE-0.95 VText
Exact Reported
5 · 3.5 ECL mechanism of the ZPM/K2S2O8 systems · Fig. 3C
ZPM reduction peak with K2S2O8-1.30 VText
Exact Reported
5 · 3.5 ECL mechanism of the ZPM/K2S2O8 systems · Fig. 3C
ZPM reduction peak in PBS-1.55 VText
Exact Reported
5 · 3.5 ECL mechanism of the ZPM/K2S2O8 systems · Fig. 3C

Cyclic voltammetry construction characterisation

SDM/MCH/dsDNA/AuNPs/Ce-MOF/GCE with ZPM/SP tracer · Electrode

K3[Fe(CN)6]/K4[Fe(CN)6] (5 mM) containing 0.1 M KCl; curves for GCE, Ce-MOF/GCE, AuNPs/Ce-MOF/GCE, dsDNA/AuNPs/Ce-MOF/GCE, MCH/dsDNA/AuNPs/Ce-MOF/GCE and SDM/MCH/dsDNA/AuNPs/Ce-MOF/GCE.

Geometry
modified GCE
Context
stepwise composite aptasensor construction
Measurement source
4 · 3.3 Electrochemical characterisations of ECL aptasensor · Fig. 3A
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Ce-MOF and AuNPs increase peak currentpeak current signal increased after Ce-MOF and AuNP modificationText
Qualitative
4 · 3.3 Electrochemical characterisations of ECL aptasensor · Fig. 3A

ECL intensity comparison

ZPM yellow precipitate powder · Powder

ECL intensities of H4TBAPy aggregations and ZPM.

Context
pristine ZPM compared with ligand aggregation control
Measurement source
5 · 3.4 ECL performance of ZPM · Fig. 3B
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
ZPM ECL enhancement over H4TBAPy aggregationsMarked as a best value within this paperroughly four timesText
Approximate
5 · 3.4 ECL performance of ZPM · Fig. 3B