Results 51 to 60 of about 4,299 (226)

Solvent extraction methods towards efficient recognition of organophosphorus pesticides: Recent progress and analytical challenges

Talanta Open
Dispersive Liquid–Liquid Microextraction (DLLME) has evolved significantly by integrating physical assistance methods to enhance extraction efficiency while minimizing the use of organic solvents and disperser agents.
Marzieh Fallahi Nezhad, Amin Foroozandeh, Hossein Salar Amoli, Mohammad Hasanzadeh   +3 more
doaj   +1 more source

Green and efficient preconcentration of calcium channel blocker drugs in water using effervescence powder in syringe-assisted deep eutectic solvent dispersive liquid-liquid microextraction

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, Saw Hong Loh, Marinah Mohd Ariffin, Wan Mohd Afiq Wan Mohd Khalik   +3 more
doaj   +1 more source

Vortex-assisted dispersive liquid–liquid microextraction for the determination of molybdenum in plants by inductively coupled plasma optical emission spectrometry [PDF]

, 2016
A new procedure for determining trace concentrations of Mo in plants combining dispersive liquid–liquid microextraction and inductively coupled plasma optical emission spectrometry is proposed here.
Aguirre Pastor, Miguel Ángel, Barros, Juan A.V.A., Canals, Antonio, Kovachev, Nikolay, Nóbrega, Joaquim A.   +4 more
core   +2 more sources

Heat‐Induced Toxicants: Sensory Appeal Distracts Consumers' Attention From Potential Toxicological Risks of Thermally Processed Foods

Food Science &Nutrition, Volume 14, Issue 4, April 2026.
The central paradox of thermal processing of foods. (A) The application of heat (e.g., frying, baking, grilling) to food initiates complex chemical reactions, most notably the Maillard reaction and thermal degradation of protein, lipids, and carbohydrate. (B) These reactions create a desirable sensory experience characterized by enticing aromas, golden‐
Joachim Dotto Matondo, Abdulsudi Issa‐Zacharia   +1 more
wiley   +1 more source

Determination of Trace Amounts of Lead with ETAAS After Single Drop Microextraction and Dispersive Liquid Liquid Microextraction Methods

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., Çakır P., Şatıroğlu N.   +2 more
doaj   +1 more source

An optimized analytical method for the simultaneous detection of iodoform, iodoacetic acid, and other trihalomethanes and haloacetic acids in drinking water [PDF]

, 2013
An optimized method is presented using liquid-liquid extraction and derivatization for the extraction of iodoacetic acid (IAA) and other haloacetic acids (HAA9) and direct extraction of iodoform (IF) and other trihalomethanes (THM4) from drinking water ...
He, G, Jiang, S, Liu, X, Qu, W, Templeton, MR, Wei, X, Zheng, W   +6 more
core   +3 more sources

Enantioselective Determination of Chiral Fungicides in Food Samples Using Automated Dispersive Microextraction Coupled With UHPLC–MS/MS

Food Frontiers, Volume 7, Issue 2, March 2026.
The use of fatty acids and bio‐derived solvents eliminates the need for toxic solvents and, when combined with automated workstations, enables parallel sample processing, thereby improving extraction efficiency and reducing human error. ABSTRACT An enantioselective analytical method based on automated dispersive liquid–liquid microextraction (DLLME ...
Yuxin Wang, Yulin Wang, Yuanjun Nie, Jizhen Fu, Yukun Yang, Li Li, Xu Jing   +6 more
wiley   +1 more source

Determination of Organochlorine Pesticides in Green Leafy Vegetable Samples via Fe3O4 Magnetic Nanoparticles Modified QuEChERS Integrated to Dispersive Liquid-Liquid Microextraction Coupled with Gas Chromatography-Mass Spectrometry

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, Guiquan Guo, Jun Zhao, Linnan Zhao, Aiqing Xia, Xu He, Cuijuan Xing, Lili Dong, Fang Wang   +8 more
doaj   +1 more source

Dispersive liquid–liquid microextraction and injection-port derivatization for the determination of free lipophilic compounds in fruit juices by gas chromatography-mass spectrometry [PDF]

, 2017
A method consisting of dispersive liquid–liquid microextraction (DLLME) followed by injection-port derivatization and gas chromatography-mass spectrometry (GC–MS) for the analysis of free lipophilic compounds in fruit juices is described.
Balcells Fluvià, Mercè, Canela i Garayoa, Ramon, Eras i Joli, Jordi, Marsol i Vall, Alexis   +3 more
core   +1 more source

Magnetic Cotton Stalk Biochar for Rapid and Eco‐Friendly Extraction and Determination of Triazole Pesticides in Fruit Juices

Food Safety and Health, Volume 4, Issue 1, Page 168-179, January 2026.
A magnetic solid‐phase extraction–liquid chromatography method for detecting triazole fungicides in fruit juices has been established using magnetic cotton stalk biochar. This method offers rapid analysis, high sensitivity, and environmentally friendly characteristics. ABSTRACT Triazole fungicides (TFs) are widely used but pose health risks. Among them,
Chaomin Zhong, Dan Ai, Yuyang Wang, Mengge Liu, Lei Ma, Huanyong Han, Di Chen, Xia Xu   +7 more
wiley   +1 more source