Article
Chemistry, Physical
Reza Hoseinpour Kouhestany, Atefeh Tamaddon, Homayon Ahmad Panahi, Arash Afshar Ebrahimi, Rahebeh Amiri
Summary: Researchers synthesized novel hyperbranched dendrimers grafted on SiO2 nanoparticles as nanosorbents for the trace extraction of exemestane. They optimized the parameters for adsorption efficiency and achieved a lower detection limit by using the HF-LPME system. The proposed method, combined with high-performance liquid chromatography, successfully determined exemestane in biological and pharmaceutical samples.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Analytical
Julia Kazakova, Mercedes Villar-Navarro, Juan Luis Perez-Bernal, Maria Ramos-Payan, Miguel Angel Bello-Lopez, Rut Fernandez-Torres
Summary: This study proposed a method for the determination of 2,4-, 2,5-, and 2,6-dinitrophenols and some of their metabolites in human urine and saliva. By using liquid phase microextraction coupled with ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry, low detection and quantitation limits of the target analytes were achieved, allowing the investigation and tentative identification of metabolites.
MICROCHEMICAL JOURNAL
(2021)
Article
Multidisciplinary Sciences
Lu Turkovic, Natan Koraj, Zvonimir Mlinaric, Tajana Silovski, Slaven Crnkovic, Miranda Sertic
Summary: This study aimed to explore the applicability of dispersive liquid-liquid microextraction (DLLME) in the simultaneous extraction of six drugs of interest from human plasma, with a focus on achieving high extraction recoveries with low sample and solvent consumption. Three novel DLLME modes (OrS-DLLME, AqS-DLLME, and AA-DLLME) were proposed and optimized, resulting in successful simultaneous extraction of all six drugs with high recoveries (81.65-95.58%). Sample volumes used were as low as 50-100 µL, with necessary organic solvent volumes in µL ranges, demonstrating compliance with green analytical chemistry principles.
Article
Chemistry, Multidisciplinary
Dan Li, Mengyuan Li, Shiping Zhu, Yanmei Gao, Mengyao Mu, Ning Zhang, Youmei Wang, Minghua Lu
Summary: Sample pretreatment plays a vital role in the analysis and detection of trace pollutants. In this study, porous hexagonal boron nitride was used as a coating material for solid-phase microextraction, demonstrating excellent extraction performance for polycyclic aromatic hydrocarbons. The method was successfully applied to the analysis of real soil samples, with satisfactory results.
Review
Chemistry, Analytical
Un-Jung Kim, Rajendiran Karthikraj
Summary: Solid-phase microextraction has emerged as a pioneering technique in sample preparation, offering simplicity, rapidness, wide applicability, and miniaturization of traditional methods. This review article provides an overview of the application of solid-phase microextraction for assessing exposure levels and health outcomes of environmental chemicals in various human populations worldwide, as well as discussing the limitations and future perspectives of this technique in human biomonitoring studies.
JOURNAL OF SEPARATION SCIENCE
(2021)
Article
Environmental Sciences
Jijie Kong, Xiaoyu Cao, Wen Huang, Chao Li, Qiming Xian, Shaogui Yang, Shiyin Li, Cheng Sun, Huan He
Summary: This study compared the efficiency of a self-made ZIF-8/h-BN solid-phase microextraction (SPME) fiber and commercial Tenax in predicting the bioavailability of nitrated polycyclic aromatic hydrocarbons (NPAHs) in sediments. The results showed that the NPAH concentrations reached extraction equilibrium after 72 h for the ZIF-8/h-BN fibers and after 168 h for the Tenax extraction. The SPME fiber extraction of NPAHs in sediments fitted well with the pseudo first-order kinetic model.
ENVIRONMENTAL POLLUTION
(2023)
Review
Engineering, Environmental
Yixuan Liang, Hanbing Li, Sumei Li, Sha Chen
Summary: Antibiotics, widely used in human and veterinary medicine, are persistent organic compounds that contribute to the development of antibiotic resistance in microbes. This review discusses the use of o-DGT technology to study the behavior of antibiotics in different environmental media. It compares different agarose diffusive gel and binding agents, explores the feasibility of o-DGT in water and soil, and analyzes the potential of using o-DGT in sediment for antibiotic measurements.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Zhonghe Li, Xingai Gao, Ming Li, Qiuliang Yan, Nan Zhang, Boyang Yu, Bimi Zhang, Shuying Zhang, Mohamed H. Helal, Ola A. Abu Ali, Mohamed A. Nassan, Muhammad Abdul Qyyum, Saira Asif, Awais Bokhari
Summary: This study successfully detected trace amounts of steroid hormone pollutants in water, sediment, and soil using a biosensor method. The method demonstrated high sensitivity and throughput.
ENVIRONMENTAL RESEARCH
(2022)
Review
Chemistry, Analytical
Yujian Lai, Lijie Dong, Qingcun Li, Peng Li, Jingfu Liu
Summary: Sampling methods for MNPs in different environmental matrices were reviewed, including collecting large MPs in waters using net techniques and sampling NPs with bulk sampling method. The primary method for soil MNPs is bulk sampling, while current atmospheric particulate matter methods can be used to collect airborne MNPs.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2021)
Article
Environmental Sciences
Daniele Sadutto, Vicente Andreu, Timo Ilo, Jarkko Akkanen, Yolanda Pico
Summary: The study focused on the occurrence, distribution, and risk assessment of 32 PPCPs in water, sediment, and soil in the Mediterranean coastal wetland Albufera Natural Park in Spain, as well as the influent and effluent of ten WWTPs. Results showed that certain PPCPs were detected at higher concentrations in the lake and channels, while only a few were found in the soil.
ENVIRONMENTAL POLLUTION
(2021)
Review
Chemistry, Analytical
Justyna Werner, Agnieszka Zgola-Grzeskowiak, Julia Platkiewicz, Justyna Plotka-Wasylka, Natalia Jatkowska, Alina Kalyniukova, Serhii Zaruba, Vasil Andruch
Summary: One of the challenges in modern analytical chemistry is the detection of trace contaminants using sensitive and selective techniques. Due to the complexity of some samples, proper sample preparation and preconcentration of analytes are often required. In line with the principles of Green Analytical Chemistry (GAC), solvent-free extraction techniques have gained popularity, such as solid-phase microextraction (SPME) and its modifications, which aim to reduce labor, time consumption, and the use of hazardous solvents. This review focuses on the use of deep eutectic solvents (DESs) in solid-phase (micro)extraction techniques and highlights their important applications.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Patricia Forbes
Summary: This article discusses sampling and sample preparation methods for organic pollutants in water published in the last two years, focusing on addressing green chemistry concerns. Microextraction techniques, including the development of novel sorptive materials and alternative extraction setups, are of particular interest in current research.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Malek Hassan, Furkan Uzcan, Syed Nasrullah Shah, Usama Alshana, Mustafa Soylak
Summary: The combination of switchable-hydrophilicity solvent-liquid-liquid microextraction (SHS-LLME) and dispersive solid-phase microextraction (DSPME) showed efficient preconcentration and determination of quercetin, with high recovery rates and good repeatability. The proposed method is superior in terms of greenness, rapidness, simplicity, and low capital cost, making it a promising technique for sample cleanup and analysis.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2021)
Review
Engineering, Environmental
Bei Zhao, Zhanxue Sun, Yadan Guo, Zhongkui Zhou, Xuegang Wang, Pingchao Ke
Summary: This study reviewed the occurrence and distribution of uranium mineral-related substances in various basins and environmental media in China, and assessed their impact on the environment and human health. The results showed significant differences in the occurrence characteristics of uranium mineral-related substances in different environmental media, which will guide the efforts to address uranium mineral-related pollution in China. The study also proposed urgent and practical suggestions for controlling uranium mining pollution.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Review
Chemistry, Analytical
Jonas da Silva Sousa, Helio Oliveira do Nascimento, Hiago de Oliveira Gomes, Ronaldo Ferreira do Nascimento
Summary: This review summarizes literature on the analysis of pesticide classes in surface water and groundwater, focusing on the toxicity of multiclass pesticides and recent advances in sample preparation methods like SPE and SPME. Different pesticide regulations across countries, improvements in SPME fibers, and the preference for tandem MS detection systems are highlighted as key points discussed in the literature.
MICROCHEMICAL JOURNAL
(2021)