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- W3205436847 abstract "Impedance spectroscopy is a widely used electrochemical technique with a wide variety of applications. Many of these applications benefit from the additional accessibility provided by low-cost impedance devices. With this in mind, a low-cost impedance device was designed for a high performance-to-cost ratio. The performance of this analyzer was validated against a high-performance DropSens µStat-i 400s potentiostat by performing an application-based experiment. Nitrate detection provides a relevant experiment because of the importance of maintaining precise nitrate concentrations to mitigate the impact of nitrate fluctuations on the environment. Dissolved nitrate samples of different concentrations, in the range 3-1000 mg/L, were confirmed colorimetrically and measured with both instruments. A calibration curve of the real impedance matched a sigmoidal transfer, with a linear region for concentrations below 10 mg/L. The device under investigation exhibited an average magnitude error of 1.28% and an average phase error of 0.96∘ relative to the high-performance standard, which validates the performance of the low-cost device. A cost analysis is presented that highlights some of the complexities of cost comparisons." @default.
- W3205436847 created "2021-10-25" @default.
- W3205436847 creator A5000261892 @default.
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- W3205436847 date "2021-10-08" @default.
- W3205436847 modified "2023-09-27" @default.
- W3205436847 title "Validation of Low-Cost Impedance Analyzer via Nitrate Detection" @default.
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- W3205436847 doi "https://doi.org/10.3390/s21196695" @default.
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