Results 231 to 240 of about 76,914 (265)

Dispersive liquid-liquid microextraction combined with digital image colorimetry for paracetamol analysis

, 2020
Paracetamol (PCM) is a frequently and most commonly used drug in pharmaceutical formulation globally. Dispersive liquid-liquid microextraction (DLLME) in combination with smartphone based digital image colorimetry (DIC) is developed for quantitative ...
R. Jain, R. Jha, Aparna Kumari, Indu Khatri   +3 more
semanticscholar   +1 more source

Dispersive liquid-liquid microextraction for determination of organic analytes

TrAC Trends in Analytical Chemistry, 2010
Abstract One of the most important objectives of modern analytical chemistry is miniaturization, simplification and automation of the whole analytical procedure, especially to speed up sample treatment, which is currently the bottleneck of analysis.
Antonio V. Herrera-Herrera, María Asensio-Ramos, Javier Hernández-Borges, Miguel Ángel Rodríguez-Delgado   +3 more
openaire   +1 more source

One-step in-syringe ionic liquid-based dispersive liquid–liquid microextraction

Journal of Chromatography A, 2009
Dispersive liquid-liquid microextraction (DLLME) has been proved to be a powerful tool for the rapid sample treatment of liquid samples providing at the same time high enrichment factors and extraction recoveries. A new, simple and easy to handle one step in-syringe set-up for DLLME is presented and critically discussed in this paper.
Marta, Cruz-Vera, Rafael, Lucena, Soledad, Cárdenas, Miguel, Valcárcel   +3 more
openaire   +2 more sources

Determination of acrylamide in brewed coffee by dispersive liquid-liquid microextraction (DLLME) and ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS).

Food Chemistry, 2019
This work has proposed the application of optimized dispersive liquid-liquid microextraction (DLLME) in order to extract acrylamide from brewed coffee samples for its subsequent determination by ultra-performance liquid chromatography tandem mass ...
M. Galuch, T. Magon, R. Silveira, A. E. Nicácio, J. Pizzo, E. Bonafé, Liane Maldaner, O. Santos, J. Visentainer   +8 more
semanticscholar   +1 more source

Preconcentration and determination of methyl methacrylate by dispersive liquid–liquid microextraction

Journal of Separation Science, 2012
This article describes the preconcentration of methyl methacrylate in produced water by the dispersive liquid–liquid microextraction using extraction solvents lighter than water followed by gas chromatography. In the present experiments, 0.4 mL dispersive solvent (ethanol) containing 15.0 μL extraction solvent (toluene) was rapidly injected into the ...
Bahram, Mokhtari, Nasser, Dalali, Kobra, Pourabdollah   +2 more
openaire   +2 more sources

Analysis of organophosphorus and pyrethroid pesticides in organic and conventional vegetables using QuEChERS combined with dispersive liquid-liquid microextraction based on the solidification of floating organic droplet.

Food Chemistry, 2019
A simple, sensitive and environmentally-friendly method for determining organophosphorus and pyrethroid pesticides in vegetables was developed to better evaluate the risk of consuming them.
Xuejin Mao, Yiqun Wan, Zhanming Li, Lin Chen, H. Lew, Hongshun Yang   +5 more
semanticscholar   +1 more source

Dispersive liquid-liquid microextraction: Evolution in design, application areas, and green aspects

Trends in Analytical Chemistry (TrAC), 2022
Muhammad Sajid
semanticscholar   +1 more source

Determination of aromatic amines from textiles using dispersive liquid–liquid microextraction

Journal of Separation Science, 2013
A dispersive liquid–liquid microextraction procedure coupled with GC‐MS is described for preconcentration and determination of banned aromatic amines from textile samples. Experimental conditions affecting the microextraction procedure were optimized.
Lu, Yang, Wang, Yiwei, Lou, Caiying, Zhu, Yan   +3 more
openaire   +2 more sources

Recent advances in dispersion strategies for dispersive liquid-liquid microextraction from green chemistry perspectives

Microchemical journal (Print), 2023
Asmaa Kamal El-Deen, H. Elmansi, F. Belal, Galal Magdy   +3 more
semanticscholar   +1 more source

Dispersive Liquid–Liquid Microextraction: Trends in The Analysis of Biological Samples

Bioanalysis, 2015
Dispersive liquid-liquid microextraction (DLLME) is a recent microextraction technique that was first developed by Rezaee and co-workers in 2006. It allows the simultaneous extraction and preconcentration of analytes into a micro-volume of extracting solvent based on a ternary solvent system involving an aqueous phase, a nonpolar water immiscible high ...
Olatz, Zuloaga, Maitane, Olivares, Patricia, Navarro, Asier, Vallejo, Ailette, Prieto   +4 more
openaire   +2 more sources