Detecting Contaminants in Water Based on Full Scattering Profiles within the Single Scattering Regime

[Image: see text] Clean water is essential for maintaining human health. To ensure clean water, it is important to use sensitive detection methods that can identify contaminants in real time. Most techniques do not rely on optical properties and require calibrating the system for each level of conta...

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Autores principales: Tzroya, Alon, Erblich, Shoshana, Duadi, Hamootal, Fixler, Dror
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10323954/
https://www.ncbi.nlm.nih.gov/pubmed/37426274
http://dx.doi.org/10.1021/acsomega.3c01977
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author Tzroya, Alon
Erblich, Shoshana
Duadi, Hamootal
Fixler, Dror
author_facet Tzroya, Alon
Erblich, Shoshana
Duadi, Hamootal
Fixler, Dror
author_sort Tzroya, Alon
collection PubMed
description [Image: see text] Clean water is essential for maintaining human health. To ensure clean water, it is important to use sensitive detection methods that can identify contaminants in real time. Most techniques do not rely on optical properties and require calibrating the system for each level of contamination. Therefore, we suggest a new technique to measure water contamination using the full scattering profile, which is the angular intensity distribution. From this, we extracted the iso-pathlength (IPL) point which minimizes the effects of scattering. The IPL point is an angle where the intensity values remain constant for different scattering coefficients while the absorption coefficient is set. The absorption coefficient does not affect the IPL point but only attenuates its intensity. In this paper, we show the appearance of the IPL in single scattering regimes for small concentrations of Intralipid. We extracted a unique point for each sample diameter wherein light intensity remained constant. The results describe a linear dependency between the angular position of the IPL point and the sample diameter. In addition, we show that the IPL point separates the absorption from the scattering, which allows the absorption coefficient to be extracted. Eventually, we present how we used the IPL point to detect the contamination levels of Intralipid and India ink in concentrations of 30–46 and 0–4 ppm, respectively. These findings suggest that the IPL point is an intrinsic parameter of a system that can be used as an absolute calibration point. This method provides a new and efficient way of measuring and differentiating between various types of contaminants in water.
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spelling pubmed-103239542023-07-07 Detecting Contaminants in Water Based on Full Scattering Profiles within the Single Scattering Regime Tzroya, Alon Erblich, Shoshana Duadi, Hamootal Fixler, Dror ACS Omega [Image: see text] Clean water is essential for maintaining human health. To ensure clean water, it is important to use sensitive detection methods that can identify contaminants in real time. Most techniques do not rely on optical properties and require calibrating the system for each level of contamination. Therefore, we suggest a new technique to measure water contamination using the full scattering profile, which is the angular intensity distribution. From this, we extracted the iso-pathlength (IPL) point which minimizes the effects of scattering. The IPL point is an angle where the intensity values remain constant for different scattering coefficients while the absorption coefficient is set. The absorption coefficient does not affect the IPL point but only attenuates its intensity. In this paper, we show the appearance of the IPL in single scattering regimes for small concentrations of Intralipid. We extracted a unique point for each sample diameter wherein light intensity remained constant. The results describe a linear dependency between the angular position of the IPL point and the sample diameter. In addition, we show that the IPL point separates the absorption from the scattering, which allows the absorption coefficient to be extracted. Eventually, we present how we used the IPL point to detect the contamination levels of Intralipid and India ink in concentrations of 30–46 and 0–4 ppm, respectively. These findings suggest that the IPL point is an intrinsic parameter of a system that can be used as an absolute calibration point. This method provides a new and efficient way of measuring and differentiating between various types of contaminants in water. American Chemical Society 2023-06-21 /pmc/articles/PMC10323954/ /pubmed/37426274 http://dx.doi.org/10.1021/acsomega.3c01977 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Tzroya, Alon
Erblich, Shoshana
Duadi, Hamootal
Fixler, Dror
Detecting Contaminants in Water Based on Full Scattering Profiles within the Single Scattering Regime
title Detecting Contaminants in Water Based on Full Scattering Profiles within the Single Scattering Regime
title_full Detecting Contaminants in Water Based on Full Scattering Profiles within the Single Scattering Regime
title_fullStr Detecting Contaminants in Water Based on Full Scattering Profiles within the Single Scattering Regime
title_full_unstemmed Detecting Contaminants in Water Based on Full Scattering Profiles within the Single Scattering Regime
title_short Detecting Contaminants in Water Based on Full Scattering Profiles within the Single Scattering Regime
title_sort detecting contaminants in water based on full scattering profiles within the single scattering regime
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10323954/
https://www.ncbi.nlm.nih.gov/pubmed/37426274
http://dx.doi.org/10.1021/acsomega.3c01977
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