Cr-Detector : A simple chemosensing system for onsite Cr (VI) detection in water

Copyright: © 2024 Dei et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited..

Due to the increase in urbanization and industrialization, the load of toxicants in the environment is alarming. The most common toxicants, including heavy metals and metalloids such as hexavalent Chromium, have severe pathophysiological impacts on humans and other aquatic biotas. Therefore, developing a portable rapid detection device for such toxicants in the aquatic environment is necessary. This work portrays the development of a field-portable image analysis device coupled with 3,3',5,5'-tetramethylbenzidine (TMB) as a sensing probe for chromium (VI) detection in the aquatic ecosystem. Sensor parameters, such as reagent concentration, reaction time, etc., were optimized for the sensor development and validation using a commercial UV-Vis spectrophotometer. The chemoreceptor integrated with a uniform illumination imaging system (UIIS) revealed the system's applicability toward Cr(VI) detection. The calibration curve using the R-value of image parameters allows Cr(VI) detection in the linear range of 25 to 600 ppb, which covers the prescribed permissible limit by various regulatory authorities. Furthermore, the adjusted R2 = 0.992 of the linear fit and correlation coefficients of 0.99018 against the spectrophotometric method signifies the suitability of the developed system. This TMB-coupled field-portable sensing system is the first-ever reported image analysis-based technology for detecting a wide range of Cr(VI) in aquatic ecosystems to our knowledge.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:19

Enthalten in:

PloS one - 19(2024), 1 vom: 31., Seite e0295687

Sprache:

Englisch

Beteiligte Personen:

Dei, Jyotsna [VerfasserIn]
Mondal, Shirsak [VerfasserIn]
Biswas, Ayan [VerfasserIn]
Sarkar, Dhruba Jyoti [VerfasserIn]
Bhattacharyya, Soumyadeb [VerfasserIn]
Pal, Souvik [VerfasserIn]
Mukherjee, Subhankar [VerfasserIn]
Sarkar, Subrata [VerfasserIn]
Ghosh, Alokesh [VerfasserIn]
Bansal, Vipul [VerfasserIn]
Bandhyopadhyay, Rajib [VerfasserIn]
Das, Basanta Kumar [VerfasserIn]
Behera, Bijay Kumar [VerfasserIn]

Links:

Volltext

Themen:

059QF0KO0R
0R0008Q3JB
18540-29-9
Chromium
Chromium hexavalent ion
Journal Article
Water

Anmerkungen:

Date Completed 05.01.2024

Date Revised 06.01.2024

published: Electronic-eCollection

Citation Status MEDLINE

doi:

10.1371/journal.pone.0295687

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM366613340