Results 191 to 200 of about 76,914 (265)

Modern approaches in dispersive liquid-liquid microextraction (DLLME) based on ionic liquids: A review

Journal of Molecular Liquids, 2018
Dispersive liquid-liquid microextraction (DLLME) has become a very popular environmentally benign sample-preparation technique, due to its simplicity, speed of operation and low consumption of solvent and reagent.
Iwona Nowak
exaly   +2 more sources

An effervescence-assisted dispersive liquid-liquid microextraction based on three-component deep eutectic solvent for the determination of fluoroquinolones in foods.

Talanta: The International Journal of Pure and Applied Analytical Chemistry, 2022
An effervescence-assisted dispersive liquid-liquid microextraction approach using three-component deep eutectic solvent based on short-chain and medium-chain carboxylic acids and terpenoid was developed for the first time.
K. Barbayanov, I. Timofeeva, A. Bulatov
semanticscholar   +1 more source

Application of supramolecular solvent based on the surface-active ionic liquid in dispersive liquid-liquid microextraction of triazine herbicides in tea samples.

Food Chemistry, 2022
In this study, a novel supramolecular solvent based on surface-active ionic liquid was prepared and used as an extraction solvent for dispersive liquid-liquid microextraction of four triazine herbicides in tea samples.
Jilong Li, Feng Wu, Yupu Zhang, Ji Feng, Xiujuan Wang, Yezhou Yang, Zhibing Wang, Hanqi Zhang   +7 more
semanticscholar   +1 more source

Hydrophobic deep eutectic solvent-based ultrasonic-assisted dispersive liquid-liquid microextraction for preconcentration and determination of trace cadmium and arsenic in wine samples

Microchemical journal (Print), 2021
In present study, DL-lactic acid/trioctylmethylammonium chloride-based deep eutectic solvent (DES), which was considered as an environmental friendly extraction solvent to replace traditional organic reagent, was firstly presented for monitoring of trace
Yinghe Ji, Min Zhao, An-Ni Li, Longshan Zhao   +3 more
semanticscholar   +1 more source

A green dispersive liquid-liquid microextraction based on deep eutectic solvents doped with β-cyclodextrin: Application for determination of tetracyclines in water samples

Microchemical journal (Print), 2021
An hydrophilic/hydrophobic deep eutectic solvent (DES) system was developed and used as a disperser/extraction solvent mixture in dispersive liquid-liquid microextraction of tetracyclines (TCs) in water samples.
H. Sereshti, F. Karami, N. Nouri
semanticscholar   +1 more source

Determination of bisphenols, parabens, and benzophenones in placenta by dispersive liquid-liquid microextraction and gas chromatography-tandem mass spectrometry.

Chemosphere, 2021
Human exposure to endocrine disrupting chemicals (EDCs) is of particular concern during development. Bisphenols, parabens, and benzophenones are EDCs widely used in the manufacture of numerous goods, personal care products, and cosmetics. The aim of this
M. Fernández, V. Mustieles, B. Suárez, I. Reina-Pérez, A. Olivas-Martínez, F. Vela-Soria   +5 more
semanticscholar   +1 more source

Reversed-phase dispersive liquid-liquid microextraction based on decomposition of deep eutectic solvent for the determination of lead and cadmium in vegetable oil.

Food Chemistry, 2021
In this work, a reversed-phase dispersive liquid-liquid microextraction procedure based on the decomposition of deep eutectic solvent was suggested for the first time.
A. Shishov, N. Volodina, E. Semenova, D. Navolotskaya, S. Ermakov, A. Bulatov   +5 more
semanticscholar   +1 more source

Extensible automated dispersive liquid–liquid microextraction

Analytica Chimica Acta, 2015
In this study, a convenient and extensible automated ionic liquid-based in situ dispersive liquid-liquid microextraction (automated IL-based in situ DLLME) was developed. 1-Octyl-3-methylimidazolium bis[(trifluoromethane)sulfonyl]imide ([C8MIM]NTf2) is formed through the reaction between [C8MIM]Cl and lithium bis[(trifluoromethane)sulfonyl]imide ...
Songqing, Li, Lu, Hu, Ketao, Chen, Haixiang, Gao   +3 more
openaire   +2 more sources

In matrix formation of deep eutectic solvent used in liquid phase extraction coupled with solidification of organic droplets dispersive liquid-liquid microextraction; application in determination of some pesticides in milk samples.

Talanta: The International Journal of Pure and Applied Analytical Chemistry, 2020
In this work, a liquid-phase extraction procedure and dispersive liquid-liquid microextraction method based on deep eutectic solvents were combined and used for the simultaneous extraction of different classes of pesticides; including carbaryl ...
A. Jouyban, M. Farajzadeh, Mohammad Reza Afshar Mogaddam   +2 more
semanticscholar   +1 more source

Development of a dispersive liquid-liquid microextraction method based on a ternary deep eutectic solvent as chelating agent and extraction solvent for preconcentration of heavy metals from milk samples.

Talanta: The International Journal of Pure and Applied Analytical Chemistry, 2020
A simple, green, rapid, and efficient ligandless dispersive liquid-liquid microextraction procedure based on solidification of a ternary deep eutectic solvent has been proposed for the extraction of trace amounts of Cd(II), Cu(II), and Pb(II) ions in ...
S. M. Sorouraddin, M. Farajzadeh, Hossein Dastoori   +2 more
semanticscholar   +1 more source