Results 41 to 50 of about 2,590 (173)
E3S Web of Conferences, 2013 Two liquid-phase microextraction procedures, single-drop microextraction (SDME) and dispersive liquid–liquid microextraction (DLLME), have been developed for the determination of lead by electrothermal atomic absorption spectrometry (ETAAS). Both methods
Efeçınar M. +2 more
doaj +1 more source
Comparison of DLLME to other methods for the determination of β2-agonists.
, 2015 Comparison of DLLME to other methods for the determination of β2-agonists.
Xiao-Ou Su (466120) +4 more
core +1 more source
Journal of Analytical Methods in Chemistry, 2021 A fast method based on Fe3O4 magnetic nanoparticles (Fe3O4 MNPs) modified QuEChERS integrated to dispersive liquid-liquid microextraction (DLLME) coupled with gas chromatography-mass spectrometry was established for the determination of 8 organochlorine ...
Ling Yu +8 more
doaj +1 more source
Green Analytical Chemistry, 2023 Efficient preconcentration techniques are crucial for the analysis of calcium channel blocker drugs such as amlodipine and nifedipine, commonly used for hypertension and heart diseases.
Shohbah Tamilselvam +3 more
doaj +1 more source
Advanced Sorbent Materials in Solid‐Phase Extraction: A Decade of Innovation and Future Perspectives
Chemistry–Methods, Volume 6, Issue 8, August 2026.This review systematically summarizes five families of advanced sorbent materials for solid‐phase extraction (SPE): nanocarbons, porous frameworks (MOFs/COFs), smart polymers, biomass‐derived sorbents, and multifunctional composites. Key molecular interactions (π–π stacking, hydrogen bonding, electrostatic attraction, host–guest recognition) are ...
Xingchen Wang +4 more
wiley +1 more source
Green and Rapid Determination of Phthalates in Mineral Water From Virgin and Recycled PET Bottles
Journal of Mass Spectrometry, Volume 61, Issue 8, August 2026.ABSTRACT This study investigates the presence and quantification of phthalates released into mineral waters from virgin and recycled polyethylene terephthalate (PET) bottles. A green, solvent‐free analytical method based on solid‐phase microextraction (SPME) coupled with gas chromatography–mass spectrometry (GC/MS) was developed and validated to detect
Claudia Lino +4 more
wiley +1 more source
, 2019 A reliable method was developed and validated based on dispersive liquid-liquid microextraction (DLLME) and ultra-high-performance liquid chromatography coupled to tandem mass spectrometry (UHPLC-MS/MS) to determine simultaneously methylparaben (MePB ...
Vinicius R. Acquaro Junior (6210497) +3 more
core +1 more source
Journal of Separation Science, Volume 49, Issue 7, July 2026.ABSTRACT This review examines recent advances in the use of natural deep eutectic solvents (NaDES) for natural product sample preparation, with emphasis on extraction, purification, analytical compatibility, and sustainability. NaDES emerge as versatile, tunable, and biocompatible media that enhance the recovery and stability of diverse phytochemicals ...
Valeria Cedeño‐Fierro +3 more
wiley +1 more source
Separations, 2022 In the current study, an effective and simple procedure of extraction for the four benzophenone compounds from water samples was achieved by dispersive liquid–liquid microextraction (DLLME) based on the solidification of floating organic droplets (SFO ...
Xian Zhang +7 more
doaj +1 more source
Journal of Separation Science, Volume 49, Issue 5, May 2026.ABSTRACT Fipronil and its degradation products, such as fipronil sulfide and fipronil desulfinyl, exhibit toxicological concerns and require reliable analytical methods for monitoring in complex matrices such as brewed coffee. This study aimed to develop a novel ultrasound‐assisted liquid–liquid microextraction approach using a natural deep eutectic ...
Natália Stram Bierhals +4 more
wiley +1 more source