Sensing Application — Facile one-pot synthesis of Co coordination polymer spheres doped macroporous carbon and its application for electrocatalytic oxidation of glucose

5 measurement groups · 24 results

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

Amperometric i-t measurement

Chronoamperometry

Co CPSs/MPC-2-GCE · Electrode

Continuous glucose additions at +0.45 to +0.70 V for MPC, Co CPSs and Co CPSs/MPC-2.

Geometry: modified GCE
Context: pristine controls and target composite
Measurement source: 141-142 · 3.2 · Fig. 8

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Optimised working potential for Co CPSs	+0.65 V	—	—	Text Exact Reported	141 · 3.2 · Fig. 8C-D
Optimised working potential for Co CPSs/MPC-2Marked as a best value within this paper	+0.65 V	—	—	Text Exact Reported	141 · 3.2 · Fig. 8E-F
Optimised working potential for MPC	+0.55 V	—	—	Text Exact Reported	141 · 3.2 · Fig. 8A-B

Amperometric calibration for glucose detection

Co CPSs/MPC-2-GCE · Electrode

Successive glucose addition at optimal potential; MPC at +0.55 V, Co CPSs and Co CPSs/MPC-2 at +0.65 V.

Geometry: modified GCE
Context: controls and target composite
Measurement source: 141-144 · 3.2 · Fig. 9; Table 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Co CPSs/MPC-2 high-range calibration slope	Y = 1.1162 x 10^-5 + 0.04812 X	—	—	Figure Axis Exact Reported	143 · Figure · Fig. 9F
Co CPSs/MPC-2 low-range calibration slopeMarked as a best value within this paper	Y = 7.0356 x 10^-6 + 0.06863 X	—	—	Figure Axis Exact Reported	143 · Figure · Fig. 9F
Linear range, Co CPSs-GCE	1-830 uM	—	—	Text Range	141 · 3.2 · Fig. 9D
Linear range, Co CPSs/MPC-2-GCE high rangeMarked as a best value within this paper	0.158-1.58 mM in Table 1; text states 0.158-1.36 mM	—	—	Table Range	144 · Table 1 · Table 1
Linear range, Co CPSs/MPC-2-GCE low rangeMarked as a best value within this paper	0.0005-0.158 mM	—	—	Text Range	141 · 3.2 · Fig. 9F; Table 1
Linear range, MPC-GCE	75-1500 uM	—	—	Text Range	141 · 3.2 · Fig. 9B
Limit of detection, Co CPSs-GCE	0.26 uM (S/N = 3)	—	—	Text Exact Reported	141 · 3.2 · Fig. 9D
Limit of detection, Co CPSs/MPC-2-GCEMarked as a best value within this paper	0.084 uM (S/N = 3)	—	—	Text Exact Reported	141-144 · 3.2; Table 1 · Fig. 9F; Table 1
Limit of detection, MPC-GCE	8.4 uM (S/N = 3)	—	—	Text Exact Reported	141 · 3.2 · Fig. 9B
Glucose response time, Co CPSs-GCE	2.64 s	—	—	Figure Axis Exact Reported	143 · Figure · Fig. 9C inset
Glucose response time, Co CPSs/MPC-2-GCEMarked as a best value within this paper	1.713 s	—	—	Text Exact Reported	141 · 3.2 · Fig. 9E inset
Glucose response time, MPC-GCE	4.28 s	—	—	Figure Axis Exact Reported	143 · Figure · Fig. 9A inset

Interference/selectivity amperometry

Co CPSs/MPC-2-GCE · Electrode

Glucose response compared with 5 uM L-phenylalanine, D-tyrosine, L-arginine, D-cysteine, glycine, L-tryptophan, L-ascorbic acid and L-tyrosine in 0.1 M NaOH.

Geometry: Co CPSs/MPC-2-GCE
Context: target composite
Measurement source: 141-144 · 3.2 · Fig. 10; Fig. S6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Selectivity against amino-acid and ascorbic-acid interferentsMarked as a best value within this paper	interferences have negligible response compared with glucose	—	—	Qualitative Qualitative	141-144 · 3.2 · Fig. 10; Fig. S6

Human serum spike-recovery glucose determination

Co CPSs/MPC-2-GCE · Electrode

Three human serum samples spiked with 5 or 10 uM glucose; n = 10.

Geometry: Co CPSs/MPC-2-GCE
Context: target composite
Measurement source: 142-144 · 3.2 · Table 2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Serum sample a recovery at 10 uM added glucose	97.54%	—	RSD 4.00%	Table Exact Reported	144 · Table 2 · Table 2
Serum sample a recovery at 5 uM added glucose	97.48%	—	RSD 5.30%	Table Exact Reported	144 · Table 2 · Table 2
Serum sample b recovery at 10 uM added glucose	92.5%	—	RSD 1.2%	Table Exact Reported	144 · Table 2 · Table 2
Serum sample b recovery at 5 uM added glucose	97.6%	—	RSD 2.3%	Table Exact Reported	144 · Table 2 · Table 2
Serum sample c recovery at 10 uM added glucoseMarked as a best value within this paper	100.84%	—	RSD 3.8%	Table Exact Reported	144 · Table 2 · Table 2
Serum sample c recovery at 5 uM added glucose	95.34%	—	RSD 1.9%	Table Exact Reported	144 · Table 2 · Table 2

Storage stability and repeatability testing

Co CPSs/MPC-2-GCE · Electrode

Current response to 0.05 mM glucose after storage at 4 deg C for 14 days; repeatability tested 10 times.

Temperature: 277.15
Geometry: Co CPSs/MPC-2-GCE
Context: target composite
Measurement source: 141 · 3.2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Repeatability RSD	5.68%	—	—	Text Exact Reported	141 · 3.2
Response retention after 14 daysMarked as a best value within this paper	97.5% of initial response	—	—	Text Exact Reported	141 · 3.2