Download Report IEEE DataPort : Normalized Nitrite-Nitrate UV-Vis Absorbance Dataset - 2025
CSV by Yuan Ju Teoh
Information
Format: CSV Publisher: IEEE DataPort Publication Date of the Electronic Edition: 12/22/2025
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ISBN: 10.21227/0pck-k104
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Description
This dataset provides normalized ultraviolet–visible (UV–Vis) absorbance spectra of nitrite–nitrate mixtures acquired for water quality analysis. Standard solutions of nitrate (0–200 ppm, 10 ppm increments) and nitrite (0–3.0 ppm, 0.1 ppm increments) were prepared and combined to form mixed samples representative of realistic aquatic conditions with spectral interference. Absorbance measurements were collected using an Agilent Cary 60 UV–Vis spectrophotometer operated at a slow scan rate of 200–300 nm/min over the wavelength range of 190–440 nm, with a spectral resolution of 1 nm. The resulting dataset captures the characteristic ultraviolet absorption behavior of nitrate and nitrite while preserving subtle nonlinear interactions between overlapping spectra. This dataset is suitable for developing and benchmarking machine learning and symbolic regression models for reagent-free nitrate and nitrite quantification, particularly in embedded or real-time water monitoring applications.
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