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- W2770111531 abstract "Abstract A disposable, low cost, commercial available electrode, Pencil graphite electrode (PGE), was modified with pyrocatechol violet (Pcv) for electrocatalytic oxidation of hydrazine. To prepare modified electrode, pencil leads were immersed into 0.01 M Pcv solution for 10 min at room temperature. Cyclic voltammetric experiments show that a broadened and highly irreversible peak attributed to oxidation of N2H4 was observed at 600 mV at the bare PGE, while a well-defined irreversible oxidation peak was observed at 100 mV at the Pcv/PGE. A shift in the overpotential to more negative direction (about 500 mV) and an enhancement in the peak current indicate that the Pcv/PGE presents an efficient electrocatalytic activity toward oxidation of hydrazine. Then, flow injection analysis (FIA) of N2H4 was performed based on its electrocatalytic oxidation at the Pcv/PGE. The recorded amperometric current-time curves in FIA under optimized conditions showed a linear dependence on the N2H4 concentration between 2.5 × 10−4 mM and 0.50 mM with a detection limit of 0.08 μM. This proposed modified electrode exhibits a simple, disposable, low cost, rapid and sensitive determination of hydrazine." @default.
- W2770111531 created "2017-12-04" @default.
- W2770111531 creator A5031275511 @default.
- W2770111531 creator A5041671614 @default.
- W2770111531 date "2017-12-01" @default.
- W2770111531 modified "2023-10-03" @default.
- W2770111531 title "Flow injection amperometric determination of hydrazine based on its electrocatalytic oxidation at pyrocatechol violet modified pencil graphite electrode" @default.
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- W2770111531 doi "https://doi.org/10.1016/j.electacta.2017.11.162" @default.
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