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- W2045481870 abstract "A simple and highly sensitive sensor based on edge-plane pyrolytic graphite electrode (EPPGE) coated with single-wall carbon nanotubes is proposed for diclofenac determination in nanomolar concentrations. The oxidation of diclofenac occurred in two well-defined peaks having peak potentials ∼439 and ∼854 mV at pH 7.2. The modified electrode showed excellent catalytic activity presenting much higher peak currents than those measured on a bare EPPGE. Under the optimum conditions, the calibration curve was linear in the concentration range 1 × 10−9–500 × 10−9 M and 25 × 10−9–1500 × 10−9 M for peaks I and II, respectively. The limit of detection for peaks I and II was found as 0.82 × 10−9 and 22.5 × 10−9 M, respectively. The developed sensor was applied for the determination of diclofenac in biological and pharmaceutical samples using square-wave voltammetry and the validation of results using high performance liquid chromatography showed excellent agreement." @default.
- W2045481870 created "2016-06-24" @default.
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- W2045481870 date "2010-11-01" @default.
- W2045481870 modified "2023-10-11" @default.
- W2045481870 title "The effect of modifying an edge-plane pyrolytic graphite electrode with single-wall carbon nanotubes on its use for sensing diclofenac" @default.
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- W2045481870 doi "https://doi.org/10.1016/j.carbon.2010.07.024" @default.
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