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A closer look at how the dispersive liquid–liquid microextraction method works. Investigation of the effect of solvent mixture composition on the quality and stability of the cloudy state
Abstract
The dispersive liquid–liquid microextraction (DLLME) is one of the most popular miniaturized extraction procedures. In this paper, the degree of dispersion and dispersion stability were studied with the aim to assess the correlations of these parameters with efficiency for the selected analytical application. The dependence between the degree of dispersion (cloudy state quality) and its stability obtained by various emulsification procedures, such as solvent-assisted emulsification (using various dispersive solvents) and mechanical emulsification (using auxiliary energies), is investigated and discussed. It was found out that the degree of dispersion depends on the type of emulsification procedure and decreases in the series: solvent-assisted (SA-) = ultrasound-assisted (UA-) > air-assisted (AA-) > vortex-assisted (VA-) emulsification. The emulsion stability depends on the degree of dispersion and there were 1810 and 2070 s for the most effective emulsification procedures, such us solvent-assisted and ultrasound-assisted emulsification, respectively. A comparison between the sensitivity of the analytical methods (using spectrophotometric determination of the anionic surfactants) and the degree of dispersion have been made. The sensitivity of the methods was ranked as follows: DLLME > UA-LLME > VA-LLME > AA-LLME.
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Authors (4)
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Serhii Zaruba
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Michaela Ovšonková
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Vasil Andruch prof.
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.3389/fchem.2024.1383445
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
Frontiers in Chemistry
no. 12,
pages 1 - 13,
ISSN: 2296-2646 - Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Zaruba S., Ovšonková M., Makoś-Chełstowska P., Andruch V.: A closer look at how the dispersive liquid–liquid microextraction method works. Investigation of the effect of solvent mixture composition on the quality and stability of the cloudy state// Frontiers in Chemistry -, (2024),
- DOI:
- Digital Object Identifier (open in new tab) 10.3389/fchem.2024.1383445
- Verified by:
- Gdańsk University of Technology
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