Cyanine-based dyes: highly sensitive sensors for the detection of the hypochlorite levels in drinking water based on fluorometry.
Hafez, N., Amer, W., Okba, E., Alganzory, H., Ebeid, E. (2023). Cyanine-based dyes: highly sensitive sensors for the detection of the hypochlorite levels in drinking water based on fluorometry.. EKB Journal Management System, 46(2), 148-162. doi: 10.21608/djs.2023.206451.1108
Nermeen S. Hafez; Wael A. Amer; Ehab A. Okba; Hussein H. Alganzory; Elzeiny M. Ebeid. "Cyanine-based dyes: highly sensitive sensors for the detection of the hypochlorite levels in drinking water based on fluorometry.". EKB Journal Management System, 46, 2, 2023, 148-162. doi: 10.21608/djs.2023.206451.1108
Hafez, N., Amer, W., Okba, E., Alganzory, H., Ebeid, E. (2023). 'Cyanine-based dyes: highly sensitive sensors for the detection of the hypochlorite levels in drinking water based on fluorometry.', EKB Journal Management System, 46(2), pp. 148-162. doi: 10.21608/djs.2023.206451.1108
Hafez, N., Amer, W., Okba, E., Alganzory, H., Ebeid, E. Cyanine-based dyes: highly sensitive sensors for the detection of the hypochlorite levels in drinking water based on fluorometry.. EKB Journal Management System, 2023; 46(2): 148-162. doi: 10.21608/djs.2023.206451.1108

Cyanine-based dyes: highly sensitive sensors for the detection of the hypochlorite levels in drinking water based on fluorometry.

Delta Journal of Science
Volume 46, Issue 2, April 2023, Page 148-162  XML PDF (1014.98 K)
Document Type: Research and Reference
DOI: 10.21608/djs.2023.206451.1108
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Authors
Nermeen S. Hafez email orcid 1; Wael A. Amerorcid 1; Ehab A. Okbaorcid 1; Hussein H. Alganzoryorcid 2; Elzeiny M. Ebeidorcid 3
1Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt
2Department of Chemistry, Faculty of Science, Benha University, Benha, Egypt.
3Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt.
Abstract
Drinking water is frequently disinfected with chlorine, and it is necessary to quantify any remaining chlorine in the form of the hypochlorite ion (ClO-). Many sensors are in use now, including colorimetric, fluorometric, and electrochemical ones, but detection limitations and simplicity of application continue to be a problem. This study discusses the findings of two novel ClO- sensors based on solvent-free microwave synthesis. The two sensors display rapid fluorescence response for ClO- with excellent selectivity over other analyte species as well as a low detection limit.

According to fluorometric performance, the sensors have low detection limits of 1.71 nM and 2.46 nM for sensors I and II, respectively, and they can detect ClO- unaffected by other dangerous water pollutants. For the detection of ClO- in real water samples, the approach produced good recovery results, ranging from 98 to 102.1%. These sensors offer a straightforward and useful approach for tracking ClO- levels in the water, as well as a low-cost and highly sensitive detection method. The sensing mechanism is explained in terms of the radical cations that are produced when the cyanine sensors I and II are exposed to ClO-.
Keywords
Fluorescent probe; ClO-; tap water; Limit of detection (LOD); Limit of quantification (LOQ)
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