Colorimetric detection of phosphate-based on iron complexing catechol-displacement assay in eutrophicated water bodies

Rafaqat Naveen; Abdul Niaz; Muhammad Iqbal Zaman; Shahanzeb Khan; Abdur Rahim; Asma Zulfiqar; Muhammad Tariq; Tawfik A. Saleh; Diogo M. F. Santos; Mabkhoot Alsaiari

doi:10.1016/j.enmm.2023.100792

Colorimetric detection of phosphate-based on iron complexing catechol-displacement assay in eutrophicated water bodies

Rafaqat Naveen
, Abdul Niaz^*
, Muhammad Iqbal Zaman
, Shahanzeb Khan
, Abdur Rahim
, Asma Zulfiqar
, Muhammad Tariq
, Tawfik A. Saleh
, Diogo M. F. Santos
, Mabkhoot Alsaiari

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

A simple, sensitive, and inexpensive colorimetric indicator-displacement assay based on Fe³⁺-catechol complex has been developed to determine PO₄ ^3-. The Fe³⁺ and catechol formed a greenish color complex, upon the addition of PO₄ ^3- to the complex, it exhibited a visual color change immediately from greenish to colorless along with UV–vis spectral change. This change was mainly attributed to the high binding affinity of PO₄ ^3- with Fe³⁺ by displacing catechol from the Fe³⁺-catechol complex. The developed sensor showed good sensitivity for the determination of PO₄ ^3- in a wide linear range from 2 − 1000 µM with a limit of detection (LOD) of 0.5 µM which was found to be lower than the permissible limit. The sensor presented good selectivity towards the detection of PO₄ ^3- in the existence of other potential interfering anions. Furthermore, the method was successfully applied to determine PO₄ ^3- in eutrophicated water bodies (river and lake water) with good recoveries and without showing any significant matrix effect.

Original language	English
Article number	100792
Journal	Environmental Nanotechnology, Monitoring and Management
Volume	20
DOIs	https://doi.org/10.1016/j.enmm.2023.100792
State	Published - Dec 2023

Bibliographical note

Publisher Copyright:
© 2023 Elsevier B.V.

Keywords

Colorimetry
Fe-catechol complex
Phosphate
UV–vis spectroscopy
Water sample

ASJC Scopus subject areas

Materials Science (miscellaneous)
Water Science and Technology
Waste Management and Disposal
Pollution
Management, Monitoring, Policy and Law

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10.1016/j.enmm.2023.100792

Cite this

Naveen, R., Niaz, A., Iqbal Zaman, M., Khan, S., Rahim, A., Zulfiqar, A., Tariq, M., Saleh, T. A., M. F. Santos, D., & Alsaiari, M. (2023). Colorimetric detection of phosphate-based on iron complexing catechol-displacement assay in eutrophicated water bodies. Environmental Nanotechnology, Monitoring and Management, 20, Article 100792. https://doi.org/10.1016/j.enmm.2023.100792

@article{051e8b4c9db7472b9d27267aefe4e355,

title = "Colorimetric detection of phosphate-based on iron complexing catechol-displacement assay in eutrophicated water bodies",

abstract = "A simple, sensitive, and inexpensive colorimetric indicator-displacement assay based on Fe3+-catechol complex has been developed to determine PO4 3-. The Fe3+ and catechol formed a greenish color complex, upon the addition of PO4 3- to the complex, it exhibited a visual color change immediately from greenish to colorless along with UV–vis spectral change. This change was mainly attributed to the high binding affinity of PO4 3- with Fe3+ by displacing catechol from the Fe3+-catechol complex. The developed sensor showed good sensitivity for the determination of PO4 3- in a wide linear range from 2 − 1000 µM with a limit of detection (LOD) of 0.5 µM which was found to be lower than the permissible limit. The sensor presented good selectivity towards the detection of PO4 3- in the existence of other potential interfering anions. Furthermore, the method was successfully applied to determine PO4 3- in eutrophicated water bodies (river and lake water) with good recoveries and without showing any significant matrix effect.",

keywords = "Colorimetry, Fe-catechol complex, Phosphate, UV–vis spectroscopy, Water sample",

author = "Rafaqat Naveen and Abdul Niaz and \{Iqbal Zaman\}, Muhammad and Shahanzeb Khan and Abdur Rahim and Asma Zulfiqar and Muhammad Tariq and Saleh, \{Tawfik A.\} and \{M. F. Santos\}, Diogo and Mabkhoot Alsaiari",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

year = "2023",

month = dec,

doi = "10.1016/j.enmm.2023.100792",

language = "English",

volume = "20",

journal = "Environmental Nanotechnology, Monitoring and Management",

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T1 - Colorimetric detection of phosphate-based on iron complexing catechol-displacement assay in eutrophicated water bodies

AU - Naveen, Rafaqat

AU - Niaz, Abdul

AU - Iqbal Zaman, Muhammad

AU - Khan, Shahanzeb

AU - Rahim, Abdur

AU - Zulfiqar, Asma

AU - Tariq, Muhammad

AU - Saleh, Tawfik A.

AU - M. F. Santos, Diogo

AU - Alsaiari, Mabkhoot

PY - 2023/12

Y1 - 2023/12

N2 - A simple, sensitive, and inexpensive colorimetric indicator-displacement assay based on Fe3+-catechol complex has been developed to determine PO4 3-. The Fe3+ and catechol formed a greenish color complex, upon the addition of PO4 3- to the complex, it exhibited a visual color change immediately from greenish to colorless along with UV–vis spectral change. This change was mainly attributed to the high binding affinity of PO4 3- with Fe3+ by displacing catechol from the Fe3+-catechol complex. The developed sensor showed good sensitivity for the determination of PO4 3- in a wide linear range from 2 − 1000 µM with a limit of detection (LOD) of 0.5 µM which was found to be lower than the permissible limit. The sensor presented good selectivity towards the detection of PO4 3- in the existence of other potential interfering anions. Furthermore, the method was successfully applied to determine PO4 3- in eutrophicated water bodies (river and lake water) with good recoveries and without showing any significant matrix effect.

AB - A simple, sensitive, and inexpensive colorimetric indicator-displacement assay based on Fe3+-catechol complex has been developed to determine PO4 3-. The Fe3+ and catechol formed a greenish color complex, upon the addition of PO4 3- to the complex, it exhibited a visual color change immediately from greenish to colorless along with UV–vis spectral change. This change was mainly attributed to the high binding affinity of PO4 3- with Fe3+ by displacing catechol from the Fe3+-catechol complex. The developed sensor showed good sensitivity for the determination of PO4 3- in a wide linear range from 2 − 1000 µM with a limit of detection (LOD) of 0.5 µM which was found to be lower than the permissible limit. The sensor presented good selectivity towards the detection of PO4 3- in the existence of other potential interfering anions. Furthermore, the method was successfully applied to determine PO4 3- in eutrophicated water bodies (river and lake water) with good recoveries and without showing any significant matrix effect.

KW - Colorimetry

KW - Fe-catechol complex

KW - Phosphate

KW - UV–vis spectroscopy

KW - Water sample

UR - https://www.scopus.com/pages/publications/85147952315

U2 - 10.1016/j.enmm.2023.100792

DO - 10.1016/j.enmm.2023.100792

M3 - Article

AN - SCOPUS:85147952315

SN - 2215-1532

VL - 20

JO - Environmental Nanotechnology, Monitoring and Management

JF - Environmental Nanotechnology, Monitoring and Management

M1 - 100792

ER -

Colorimetric detection of phosphate-based on iron complexing catechol-displacement assay in eutrophicated water bodies

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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