Results 51 to 60 of about 1,341 (180)

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

Simultaneous Determination of Multiple Contaminants in Chicken Liver Using Dispersive Liquid-Liquid Microextraction (DLLME) Detected by LC-HRMS/MS

Foods, 2023
Simultaneous determination of a mixture of food contaminants, including pesticides, sulphonamides, fluoroquinolones, anthelmintics, and aflatoxin B1, in solid biological samples (chicken liver) by dispersive liquid-liquid microextraction/liquid ...
Belete Eshetu Gebreyohannes, Simiso Dube, Mathew Muzi Nindi   +2 more
doaj   +1 more source

Ion-Pair Complex of Trimethoprim with Alizarin Yellow and its Determination and Extraction by LLE and DLLME

Tikrit Journal of Pure Science, 2023
For the analysis of trimethoprim medication in its pure form and pharmaceutical formulations, precise and accurate microextraction techniques with UV-Vis measurement have been developed and confirmed. In this study, LLE and DLLME procedures were utilized for the separation, pre-concentration, and evaluation of trimethoprim in pure form and ...
Araf I. Jabbar, Mohammed Z. Thani, Ali I. Khaleel   +2 more
openaire   +2 more sources

Ultrasound‐Assisted Extraction Using a 3D‐Printed Device Functionalized With SPE Sorbent for UHPLC‐DAD Analysis of Pesticide Residues in Honey

Journal of Food Science, Volume 91, Issue 1, January 2026.
ABSTRACT The presence of pesticide residues in honey represents a significant concern for food safety and public health, underscoring the need for advanced analytical techniques capable of ensuring accurate detection and effective food control. In this study, a stereolithographically 3D‐printed device coated with the solid‐phase extraction (SPE ...
Daniela Lupu, Gabriel Hancu, Laura Ferrer   +2 more
wiley   +1 more source

Human Exposure to Metal(loids) in Cosmetics: An Insightful Review of Sample Preparation, Analytical Techniques, and Human Health Implications

Journal of Chemistry, Volume 2026, Issue 1, 2026.
Pursuing enhanced aesthetics through cosmetics may unknowingly expose consumers to a hidden threat of metals/metalloids toxicity. This review comprehensively investigates heavy metals/metalloids found in cosmetics and their potential health impacts on consumers. These metals/metalloids are intentionally added as ingredients, serving specific functions,
Mahmood Ahmed, Aamir Sohail, Maryam, Muhammad Zaeem Mehdi, Muhammad Yaseen, Arslan Usman, Ahmad Saeed, Mudassar Sanaullah, Eisha Eiman, Ali Abbas Aslam, Sohini Basu Roy   +10 more
wiley   +1 more source

Recent Advances in Reactive Microdroplets for Clean Water and Energy

Advanced Materials, Volume 37, Issue 51, December 23, 2025.
Reactive microdroplets enable precise and sustainable chemistry at small scales. This review explores their role as confined reactors and dynamic interfaces for synthesizing functional materials, fuels, and microdevices. It offers a critical perspective on how droplet‐based platforms can drive next‐generation technologies in clean energy, environmental
Qiuyun Lu, Boubakar Sanogo, Tanay Kumar, Ben Bin Xu, Xuehua Zhang   +4 more
wiley   +1 more source

Determination of four parabens in cosmetics by high-performance liquid chromatography with magnetic solid-phase and ionic dispersive liquid–liquid extraction

Reviews in Analytical Chemistry, 2021
To determine the trace amount of four benzoic acid esters in cosmetics, ionic dispersive liquid–liquid microextraction (DLLME) and magnetic solid-phase extraction were combined and optimized.
Gao Xun, Xu Kai, Chi Miaomiao, Li Jiaojiao, Suo Lingzhe, Zhu Lin, Chen Kexin, Mu Jingqing   +7 more
doaj   +1 more source

Thin-layer chromatography: An efficient method for the optimization of dispersive liquid-liquid microextraction

Acta Chimica Slovenica, 2018
Thin-layer chromatography (TLC) is an often omitted analytical technique due to its lower sensitivity and separation capacity. Even in the era of high-performance liquid chromatography (HPLC), thin-layer chromatography still offers many advantages, such ...
Elena Kupcova, Katarína Reiffová, Yaroslav Bazeľ   +2 more
doaj   +1 more source

Trace mercury determination in drinking and natural water after preconcentration and separation by DLLME-SFO method coupled with cold vapor atomic absorption spectrometry

E3S Web of Conferences, 2014
A novel dispersive liquid–liquid microextraction based on solidification of floating organic drop (DLLME-SFO) for simultaneous separation/preconcentration of ultra trace amounts of mercury was used.
Abdollahi Atousa, Amirkavehei Mooud, Gheisari Mohammad Mehdi, Tadayon Fariba   +3 more
doaj   +1 more source

Optimization of Parallel Artificial Liquid Membrane Extraction for the Determination of Over 50 Psychoactive Substances in Oral Fluid Through UHPLC–MS/MS

Drug Testing and Analysis, Volume 17, Issue 10, Page 1877-1895, October 2025.
This study is related to the development of a microextraction method for the determination of 56 psychoactive substances in oral fluid. Sample clean‐up is obtained by parallel artificial liquid membrane extraction and analyzed by liquid chromatography–tandem mass spectrometry.
Martina Croce, Camilla Montesano, Ilenia Bracaglia, Francesco Bartolini, Marcello Mascini, Dario Compagnone, Manuel Sergi   +6 more
wiley   +1 more source