Results 61 to 70 of about 2,590 (173)

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

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

Dispersive Liquid–Liquid Microextraction for the Determination of Brominated Flame Retardants Detected by Gas Chromatography–Time of Flight Mass Spectrometry

Journal of Chemistry, Volume 2026, Issue 1, 2026.
A dispersive liquid–liquid microextraction followed by gas chromatography–time of flight mass spectrometry method was optimized, developed, and applied for the preconcentration of polybrominated diphenyl ethers (BDE‐47, BDE‐100, BDE‐153, BDE‐154, and BDE‐183) in water samples. Several parameters that affected the extraction efficiency, such as the type
Belete Eshetu Gebreyohannes, Simiso Dube, Mathew Muzi Nindi   +2 more
wiley   +1 more source

dLLME-μSPE extraction coupled to HPLC-ESI-MS/MS for the determination of F2α-IsoPs in human urine

, 2020
Oxidative stress is a pathological condition characterized by an imbalance between body's antioxidant defenses and oxidizing agents, resulting in damage of endogenous molecules. These products can be used as markers of oxidative conditions; in particular,
Serafini M., Compagnone D., Sergi M., Fanti F., Montesano C., Vincenti F.   +5 more
core   +1 more source

Simultaneous Determination of a Polychlorinated Dibenzo-p-Dioxin and Dibenzo-p-Furan in Environmental Water by Dispersive Liquid-Liquid Microextraction (DLLME) and a Modified QuEChERS Procedure with High-Performance Liquid Chromatography – Diode Array Detection (HPLC-DAD)

, 2023
Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) are persistent organic pollutants frequently detected in air, soil, and water. Thus, monitoring these compounds in environmental compartments is fundamental to identifying potential risks to ...
Lucas V. P. Freitas, Flaviano O. Silvério, Lázaro C. Sicupira, Lázaro Chaves Sicupira, Flaviano Oliveira Silvério, Gevany Paulino de Pinho, Gevany P. de Pinho, Lucas Victor Pereira de Freitas   +7 more
core   +2 more sources

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

Medicine Dropper‐Assisted Solvent Bar Micro‐Extraction (SBME) of Imidacloprid Pesticide From Fruit Samples Utilizing a Facemask's Meltdown Layer as a Holder of a Deep Eutectic Extraction Solvent

Analytical Science Advances, Volume 6, Issue 2, December 2025.
ABSTRACT In response to an emerging need for the development of advanced analytical methods to guarantee food quality and safety, this study presents a novel medicine dropper‐assisted SBME (MD‐SBME) that was developed. The technique uses a meltdown layer of a facemask (MLF) as a holder of the extraction solvent.
Herbert Musarurwa, Nikita Tawanda Tavengwa, Tebogo Mphatlalala Mokgehle, Ntakadzeni Edwin Madala, Shirley Kholofelo Selahle   +4 more
wiley   +1 more source

Determination of polybrominated diphenyl ethers in water at ng/L level by a simple DLLME-GC-(EI) MS method [PDF]

, 2015
Dispersive liquid-liquid microextraction (DLLME) is an extraction procedure gaining popularity in the recent years due to the easiness of operation, high enrichment factors, low cost and low consumption of organic solvents.
Mónica S. F. Santos, Luís M. Madeira, José Luís Moreira, Arminda Alves   +3 more
core   +1 more source

A Simple in Syringe Low Density Solvent-Dispersive Liquid Liquid Microextraction for Enrichment of Some Metal Ions Prior to Their Determination by High Performance Liquid Chromatography in Food Samples

Molecules, 2020
A simple and highly sensitive method is developed for the simultaneous determination of Ni2+, Cr2O72−, Co2+, and Hg2+ by using in syringe low density solvent-dispersive liquid liquid microextraction (ISLD-DLLME), followed by high performance liquid
Melasinee Laosuwan, Siriboon Mukdasai, Supalax Srijaranai   +2 more
doaj   +1 more source

A rapid and cost‐effective method based on dispersive liquid‐liquid microextraction coupled to injection port silylation‐gas chromatography‐mass spectrometry for determination of morphine in illicit opium

Analytical Science Advances, 2021
A simple, rapid, cost‐effective and environment friendly analytical method based on dispersive liquid‐liquid microextraction (DLLME) coupled to injection port silylation (IPS)–gas chromatography‐mass spectrometry is described for the determination of ...
Rajeev Jain, Meenu Singh, Aparna Kumari, Rohitshva Mani Tripathi   +3 more
doaj   +1 more source