Selectivity and sensitivity enhanced green energy waste based indirect-μ-solid phase extraction of carbaryl supported by DFT and molecular docking studies

S. Kanchi, M. I. Sabela, Mohd Shahbaaz, N. J. Gumede, K. Gopalakrishnan, K. Bisetty, N. Venkatasubba Naidu, Inamuddin, Abdullah M. Asiri

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This work reports on a simple, selective, sensitive, rapid and robust spectrophotometric indirect-μ-solid phase extraction (ID-μ-SPE) of carbaryl with 4,4′-bis(4-aminophenoxy) benzophenone. These methods were performed in a 5 mL disposable syringe with green energy waste as a solid phase extractor in phosphate buffer medium (pH 8.5). The alkaline hydrolysis of carbaryl resulted 1-naphthol, which interacts with the diazotized 4,4′-bis(4-aminophenoxy) benzophenone to produce red colored product (λmax:450 nm) or interacts with 4,4′-bis(4-aminophenoxy) benzophenone in the presence of an oxidizing agent, Se (IV) to give purple colored product (λmax:545 nm). The obtained colored products were stable for 45 and 63 h respectively. The resulted colored products obey Beer's law in the range of 0.3–12.0 μg mL−1 and 0.3–9.0 μg mL−1 for both methods with detection limits ranging from 0.020–0.022 μg mL−1. Additionally, the density functional theory calculations and molecular docking studies were performed to explore the stability profiles, intermolecular interactions and related electronic transitions for colored products to complement the experimental results. The developed methods are reliable and reproducible to detect carbaryl residues in its formulations, waters and food grains.

Original languageEnglish
Pages (from-to)112-120
Number of pages9
JournalJournal of Molecular Liquids
Volume257
DOIs
Publication statusPublished - 2018 May 1

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Carbaryl
Discrete Fourier transforms
solid phases
selectivity
Syringes
Naphthol
sensitivity
products
Density functional theory
Hydrolysis
Phosphates
grains (food)
Oxidants
energy
Buffers
syringes
Beer law
Water
complement
hydrolysis

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

Kanchi, S. ; Sabela, M. I. ; Shahbaaz, Mohd ; Gumede, N. J. ; Gopalakrishnan, K. ; Bisetty, K. ; Venkatasubba Naidu, N. ; Inamuddin ; Asiri, Abdullah M. / Selectivity and sensitivity enhanced green energy waste based indirect-μ-solid phase extraction of carbaryl supported by DFT and molecular docking studies. In: Journal of Molecular Liquids. 2018 ; Vol. 257. pp. 112-120.
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abstract = "This work reports on a simple, selective, sensitive, rapid and robust spectrophotometric indirect-μ-solid phase extraction (ID-μ-SPE) of carbaryl with 4,4′-bis(4-aminophenoxy) benzophenone. These methods were performed in a 5 mL disposable syringe with green energy waste as a solid phase extractor in phosphate buffer medium (pH 8.5). The alkaline hydrolysis of carbaryl resulted 1-naphthol, which interacts with the diazotized 4,4′-bis(4-aminophenoxy) benzophenone to produce red colored product (λmax:450 nm) or interacts with 4,4′-bis(4-aminophenoxy) benzophenone in the presence of an oxidizing agent, Se (IV) to give purple colored product (λmax:545 nm). The obtained colored products were stable for 45 and 63 h respectively. The resulted colored products obey Beer's law in the range of 0.3–12.0 μg mL−1 and 0.3–9.0 μg mL−1 for both methods with detection limits ranging from 0.020–0.022 μg mL−1. Additionally, the density functional theory calculations and molecular docking studies were performed to explore the stability profiles, intermolecular interactions and related electronic transitions for colored products to complement the experimental results. The developed methods are reliable and reproducible to detect carbaryl residues in its formulations, waters and food grains.",
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Selectivity and sensitivity enhanced green energy waste based indirect-μ-solid phase extraction of carbaryl supported by DFT and molecular docking studies. / Kanchi, S.; Sabela, M. I.; Shahbaaz, Mohd; Gumede, N. J.; Gopalakrishnan, K.; Bisetty, K.; Venkatasubba Naidu, N.; Inamuddin; Asiri, Abdullah M.

In: Journal of Molecular Liquids, Vol. 257, 01.05.2018, p. 112-120.

Research output: Contribution to journalArticle

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T1 - Selectivity and sensitivity enhanced green energy waste based indirect-μ-solid phase extraction of carbaryl supported by DFT and molecular docking studies

AU - Kanchi, S.

AU - Sabela, M. I.

AU - Shahbaaz, Mohd

AU - Gumede, N. J.

AU - Gopalakrishnan, K.

AU - Bisetty, K.

AU - Venkatasubba Naidu, N.

AU - Inamuddin,

AU - Asiri, Abdullah M.

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