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Concurrent measurement of nitrate and ammonium in water and soil samples using ion‐selective electrodes: Tackling sensitivity and precision issues by Fayose, Tolulope; Thomas, Ellen; Radu, Tanja; Dillingham, Peter; Ullah, Sami; Radu, Aleksandar is a Chemistry article available to read on EtoBox.
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## Abstract In this paper, we demonstrate the suitability, sensitivity, and precision of low‐cost and easy‐to‐use ion‐selective electrodes (ISEs) for concurrent detection of NH~4~ ^+^ and NO~3~ ^‐^ in soil and water by technical and non‐technical end‐users to enable efficient soil and water management exposed to chronic reactive nitrogen loading. We developed a simplified methodology for sample preparation followed by the demonstration of an analytical methodology resulting in improvements of sensitivity and precision of ISEs. Herein, we compared and contrasted ISEs with traditional laboratory‐based technique such as Flow Injection Analysis (FIA) and portable colorimetric assay followed by comparisons of linear regression and Bayesian nonlinear calibration approaches applied on both direct potentiometry and standard addition modes of analysis in terms of in‐field applications and improvement of sensitivity and precision. The ISEs were validated for sensing on a range of ambient soil and water samples representing a range of NH~4~ ^+^ and NO~3~ ^‐^ concentrations from pristine to excessive saturation conditions. Herein developed methodology showed excellent agreement with lab‐based
Who reads Concurrent measurement of nitrate and ammonium in water and soil samples using ion‐selective electrodes: Tackling sensitivity and precision issues?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Fayose, Tolulope; Thomas, Ellen; Radu, Tanja; Dillingham, Peter; Ullah, Sami; Radu, Aleksandar
- Publisher
- John Wiley and Sons Inc (ISSN 2628-5452)
- Published
- 2020
- Language
- EN
- Field
- Chemistry (Physical Sciences)