Sensing Application — Synthesis and characterization of Fe3O4-supported metal–organic framework MIL-101(Fe) for a highly selective and sensitive hydrogen peroxide electrochemical sensor

5 measurement groups · 19 results

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

MIL-101(Fe)@Fe3O4/NGCE sensor · Electrode

H2O2 successive injections in stirred 0.1 M PBS pH 9 at -0.5 V versus Ag/AgCl

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
CA linear detection range	0.005-0.02 mM (5-20 uM)	—	—	Table Range	5228-5229 · Analytical application · Table 2
CA limit of detection	1.76 uM	—	—	Table Exact Reported	5228-5229 · Analytical application · Table 2
CA peak-current measured concentration upper value	up to 55 uM	—	—	Text Rounded Reported	5228 · Analytical application · Fig. 8
CA calibration slope	Ip = 0.3092 C_H2O2 + 12.363; SD = 0.183; R2 = 0.99	—	SD = 0.183; R2 = 0.99	Text Exact Reported	5228 · Analytical application · Fig. 8
CA sensitivityMarked as a best value within this paper	556.5037 uA mM-1 cm-2	—	—	Table Exact Reported	5228-5229 · Analytical application · Table 2

MIL-101(Fe)@Fe3O4/NGCE sensor · Electrode

0.1 M PBS pH 9.0; pulse amplitude 50 mV, step potential 5 mV, pulse time 25 ms; scan rate 50 mV/s; H2O2 0.001-0.05 mM

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
DPV linear concentration rangeMarked as a best value within this paper	0.001-0.01 mM (1-10 uM)	—	—	Table Range	5229 · Analytical application · Table 2
DPV limit of detectionMarked as a best value within this paper	0.15 uM	—	—	Table Exact Reported	5228-5229 · Analytical application · Table 2
DPV peak-current measured concentration upper value	up to 20 uM	—	—	Text Rounded Reported	5228 · Analytical application · Fig. 7
DPV calibration slope	Ip = 0.0363 C_H2O2 + 0.7013; SD = 0.002; R2 = 0.99	—	SD = 0.002; R2 = 0.99	Text Exact Reported	5227-5228 · Analytical application · Fig. 7
DPV sensitivity	68.8312 uA mM-1 cm-2	—	—	Table Exact Reported	5228-5229 · Analytical application · Table 2

MIL-101(Fe)@Fe3O4/NGCE sensor · Electrode

Industrial hair lightener sample; added H2O2 4 uM; six determinations; average of three measurements for recovery/RSD

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Added H2O2 concentration in hair lightener test	4 uM	—	—	Table Exact Reported	5230 · Analytical application · Table 3
Found H2O2 concentrations in six hair lightener tests	3.82, 3.72, 3.89, 3.99, 3.97, 3.97 uM	—	—	Table Exact Reported	5230 · Analytical application · Table 3
Hair lightener recovery	97.33%	—	—	Table Exact Reported	5230 · Analytical application · Table 3
Hair lightener RSD	2.73%	—	—	Table Exact Reported	5230 · Analytical application · Table 3

MIL-101(Fe)@Fe3O4/NGCE sensor · Electrode

40 mM H2O2 in stirred 0.1 M PBS pH 9; refrigerated storage up to 14 days

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Minimum reported reuse count	at least 6 times	—	—	Text Rounded Reported	5230 · Analytical application · Fig. 10
Refrigerated storage duration	14 days	—	—	Text Exact Reported	5230 · Analytical application · Fig. 10

MIL-101(Fe)@Fe3O4/NGCE sensor · Electrode

PBS with 3 mM H2O2; 20 cycles; scan rate 50 mV s-1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Working stability over recurrent CV cycles	no significant change over 20 cycles	—	—	Text Qualitative	5230 · Analytical application · Fig. 9
Retained electrochemical signal after 1 week	93 wt% of the signal after 1 week	—	—	Text Exact Reported	5230 · Analytical application · Fig. 9
Retained electrochemical signal after 2 weeks	89.9 wt% of the signal after 2 weeks	—	—	Text Exact Reported	5230 · Analytical application · Fig. 9