Smartphone-based colorimetric determination of fluoride anions using polymethacrylate optode

Abstract

We developed a new transparent polymer optode based on polymethacrylate with Zr(IV) and alizarin red complex immobilized into it for digital colorimetric and solid-phase spectrophotometric determination of fluoride anions. The matrix changes its colour from purple to yellow after it contacts fluoride anion. We developed a processing algorithm for coloured images which helps calculate mean value for the RGB colour-coordinate system in a selected optode image and translates it into a fluoride concentration value. The analytical signal of the suggested method has a linearity range of 0.1–30 mg⋅L⁻¹ with the detection limit 0.03 mg⋅L⁻¹. Compared to other methods, the modified polymethacrylate matrix is actually a ready-to-use colorimetric system offering rapid results for drinking water quality control.

Original language	English
Article number	122103
Journal	Talanta
Volume	226
DOIs	https://doi.org/10.1016/j.talanta.2021.122103
Publication status	Published - 1 May 2021

Keywords

Digital colorimetry
Fluoride
Immobilized reagents
Polymethacrylate matrix
Solid phase spectrophotometry

ASJC Scopus subject areas

Analytical Chemistry

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@article{8d5b07ea70ea4c0d8328939b4c70f076,

title = "Smartphone-based colorimetric determination of fluoride anions using polymethacrylate optode",

abstract = "We developed a new transparent polymer optode based on polymethacrylate with Zr(IV) and alizarin red complex immobilized into it for digital colorimetric and solid-phase spectrophotometric determination of fluoride anions. The matrix changes its colour from purple to yellow after it contacts fluoride anion. We developed a processing algorithm for coloured images which helps calculate mean value for the RGB colour-coordinate system in a selected optode image and translates it into a fluoride concentration value. The analytical signal of the suggested method has a linearity range of 0.1–30 mg⋅L−1 with the detection limit 0.03 mg⋅L−1. Compared to other methods, the modified polymethacrylate matrix is actually a ready-to-use colorimetric system offering rapid results for drinking water quality control.",

keywords = "Digital colorimetry, Fluoride, Immobilized reagents, Polymethacrylate matrix, Solid phase spectrophotometry",

author = "Saranchina, {N. V.} and Slizhov, {Y. G.} and Vodova, {Y. M.} and Murzakasymova, {N. S.} and Ilyina, {A. M.} and Gavrilenko, {N. A.} and Gavrilenko, {M. A.}",

note = "Funding Information: The work was financially supported by Ministry of Education and Science of the Russian Federation grant 0721-2020-0037 . Publisher Copyright: {\textcopyright} 2021 Elsevier B.V. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",

year = "2021",

month = may,

day = "1",

doi = "10.1016/j.talanta.2021.122103",

language = "English",

volume = "226",

journal = "Talanta",

issn = "0039-9140",

publisher = "Elsevier",

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AU - Saranchina, N. V.

AU - Slizhov, Y. G.

AU - Vodova, Y. M.

AU - Murzakasymova, N. S.

AU - Ilyina, A. M.

AU - Gavrilenko, N. A.

AU - Gavrilenko, M. A.

N1 - Funding Information: The work was financially supported by Ministry of Education and Science of the Russian Federation grant 0721-2020-0037 . Publisher Copyright: © 2021 Elsevier B.V. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/5/1

Y1 - 2021/5/1

N2 - We developed a new transparent polymer optode based on polymethacrylate with Zr(IV) and alizarin red complex immobilized into it for digital colorimetric and solid-phase spectrophotometric determination of fluoride anions. The matrix changes its colour from purple to yellow after it contacts fluoride anion. We developed a processing algorithm for coloured images which helps calculate mean value for the RGB colour-coordinate system in a selected optode image and translates it into a fluoride concentration value. The analytical signal of the suggested method has a linearity range of 0.1–30 mg⋅L−1 with the detection limit 0.03 mg⋅L−1. Compared to other methods, the modified polymethacrylate matrix is actually a ready-to-use colorimetric system offering rapid results for drinking water quality control.

AB - We developed a new transparent polymer optode based on polymethacrylate with Zr(IV) and alizarin red complex immobilized into it for digital colorimetric and solid-phase spectrophotometric determination of fluoride anions. The matrix changes its colour from purple to yellow after it contacts fluoride anion. We developed a processing algorithm for coloured images which helps calculate mean value for the RGB colour-coordinate system in a selected optode image and translates it into a fluoride concentration value. The analytical signal of the suggested method has a linearity range of 0.1–30 mg⋅L−1 with the detection limit 0.03 mg⋅L−1. Compared to other methods, the modified polymethacrylate matrix is actually a ready-to-use colorimetric system offering rapid results for drinking water quality control.

KW - Digital colorimetry

KW - Fluoride

KW - Immobilized reagents

KW - Polymethacrylate matrix

KW - Solid phase spectrophotometry

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