Design of fluorescent method for sensing toxic diazinon in water samples using PbS quantum dots-based gelatin

Abstract

In this current article, a chemical sensor was synthesized PbS functionalized with gelatin quantum dots for toxic diazinon. The measure of toxic diazinon was performed using concentration 0.5 µM, PbS quantum dot-gelatin nanocomposites sensor, pH 6, and time 50 s, wavelength 300 nm, in phosphate buffer solution. Under the optimum conditions, the detection limit linear range was obtained (0.01–20.0 µg L⁻¹). The standard deviation of less than (1.0%), and detection limits (3S/m) of the method (0.01 µg L⁻¹) and quantification (LOQ) of (0.099 µg L⁻¹), for determination of toxic diazinon, was obtained. The observed outcomes confirmed the suitability recovery and a very low detection limit for measuring the toxic diazinon. The Chemical PbS Quantum Dot–Gelatin nanocomposites sensor as excellent sensor was applied to measure and analyze residue toxic diazinon in water samples.

Keywords:

• Toxic diazinon
• insecticide
• fluorescence
• PbS with gelatin synthesis
• quantum dots

Acknowledgements

The authors gratefully acknowledge the support of this work by the Islamic Azad University, Branch of Kermanshah, Iran.

CRediT authorship contribution statement

Maryam Abrishamkar: Conceptualization, Methodology, Resources, Writing-original draft, Supervision.

Elham Pournamdari: Conceptualization, Investigation, Methodology, Writing-original draft.

Nasrin Choobkar: Conceptualization, Methodology, Resources, Writing-original draft, Supervision.

Parisa Jamalipour: Conceptualization, Investigation, Methodology, Writing-original draft.

Disclosure statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Data availability statement

The original contributions presented in the study are included in the article/Supplementary Material, further inquiries and all data can be the results in this current article.

Additional information

Funding

The research was supported by a grant carried out with the help of the Islamic Azad University Kermanshah Branch, Iran, and the facilities of the laboratory section in unit water treatment.