Differential pulse voltammetry paraquat sensing
truxene-Cu cMOF-modified GC electrode · Electrode
DPV pulse amplitude 50 mV, pulse width 200 ms; paraquat concentrations 0.2-10.0 uM for response, linear range 0.2-5 uM.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| DPV bare GC original peak | -0.47 V | — | — | Text Exact Reported | 7507 · Results and Discussion · Figure 4b |
| DPV cMOF-modified GC paraquat peak | -0.68 V | — | — | Text Exact Reported | 7507 · Results and Discussion · Figure 4b-d |
| paraquat calibration slope | slope 9.9109 uA/uM | — | standard error 0.06823; intercept 0.22402 uA; adjusted R-square 0.99919 | Figure Axis Approximate | S-33 · Electrical properties of the MOF · Figure S26 |
| EPA drinking-water paraquat concentration cited by authors | 0.20 mg L-1 (0.78 uM) | 0.2 mg L-1 | — | Text Exact Reported | 7506 · Results and Discussion |
| paraquat DPV linear range upper bound | 5 uM | — | — | Text Exact Reported | 7507 · Conclusions · Figure 4d; Figure S26 |
| paraquat DPV linear range lower bound | 0.2 uM | — | — | Text Exact Reported | 7507 · Conclusions · Figure 4d; Figure S26 |
| paraquat limit of detectionMarked as a best value within this paper | 4.1 x 10^-8 M (S/N = 3); also reported as 0.041 uM | 0.041 uM | S/N = 3 | Text Exact Reported | 7504 and 7507 · Abstract; Results and Discussion · Figure 4d; Figure S26 |