Chitosan nanoparticles modified TLC-densitometry for determination of imidacloprid and deltamethrin residues in plants: greenness assessment-Reference-Cited by-同舟云学术

Chitosan nanoparticles modified TLC-densitometry for determination of imidacloprid and deltamethrin residues in plants: greenness assessment

Published:2023-04-04 Issue:1 Volume:17 Page:
ISSN:2661-801X
Container-title:BMC Chemistry
language:en
Short-container-title:BMC Chemistry

Author:

Elbaz Ghadeer A.,Zaazaa Hala E.,Monir Hany H.,Abd El Halim Lobna M.

Abstract

AbstractTwo thin layer chromatography (TLC) methods have been developed for the determination of pesticides residues of imidacloprid (IMD) and deltamethrin (DLM) in thyme and guava leaves. In the two methods, the used stationary phase was silica gel 60 F254 plates impregnated in chitosan nanoparticles (ChTNPs) 0.5% to improve separation using a green developing system consists of isopropyl alcohol for IMD and n-hexane-toluene-ethylacetate for DLM. The two pesticides were determined quantitatively, after TLC separation, at wavelengths 270.0 nm for IMD and 230.0 nm for DLM. Validation of both approaches was carried out in agreement with the guidelines of International Conference on Harmonization (ICH) and found to be selective, reliable and reproducible. Limits of detection of IMD and DLM were 0.002 and 0.00116 μg/spot, respectively. The newly developed TLC methods were used to monitor the pre-harvest interval estimation. Analytical eco-scaling depending on penalty points for IMD was calculated and showed that this method was eco-friendlier than the reported one. Graphical Abstract

Funder

Cairo University

Publisher

Springer Science and Business Media LLC

Subject

General Chemistry

Link

https://link.springer.com/content/pdf/10.1186/s13065-023-00941-2.pdf

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