Article
Chemistry, Analytical
Aylin Altinisik Tagac, Pelin Erdem, Serap Seyhan Bozkurt, Melek Merdivan
Summary: A novel montmorillonite clay bionanocomposite modified with chitosan, carboxymethyl cellulose, and a benzylimidazolium based dicationic ionic liquid was fabricated on stainless steel wire for the determination of organochlorine pesticides in real samples using SPME-GC method. The proposed method showed low limits of detection, good linearities, and high reusability, making it applicable for analyzing OCPs in various samples.
ANALYTICA CHIMICA ACTA
(2021)
Review
Chemistry, Analytical
Theodoros Chatzimitakos, Phoebe Anagnostou, Ioanna Constantinou, Kalliroi Dakidi, Constantine Stalikas
Summary: The use of magnetic ionic liquids (MILs) as unconventional solvents in sample preparation procedures has garnered significant attention, combining the advantageous properties of ionic liquids and magnetic properties. The increasing number of published reports on the use of MILs in sample preparation suggests a promising research field. Progress in this field is achieved through developing new MILs with better properties and by combining methods to create advanced extraction procedures.
Article
Chemistry, Analytical
Pelin Erdem, Aylin Altinisik Tagac, Serap Seyhan Bozkurt, Melek Merdivan
Summary: In this study, a novel SPME fiber was prepared for the extraction and analysis of polycyclic aromatic hydrocarbons. The MMT/CH/O-DIL fiber showed wider linear ranges, lower limits of detection, high extraction recoveries, and good reproducibility compared to traditional fibers.
Article
Biochemical Research Methods
Asmaa Kamal El-Deen, Kuniyoshi Shimizu
Summary: The developed method efficiently determined fifteen PAHs in different environmental matrices using a modified QuEChERS and green AA-DLLME, with a high enrichment factor and low detection limits. The process was successfully applied to coffee, tea, and water samples with a recovery rate of over 90%, and it was environmentally friendly according to the AGREE metric system.
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
(2021)
Article
Chemistry, Analytical
F. Vela-Soria, J. Garcia-Villanova, V Mustieles, T. de Haro, J. P. Antignac, M. F. Fernandez
Summary: The study developed a method to determine 10 PFAS in placental tissue, demonstrating its suitability in evaluating fetal exposure to PFAS and providing key data on the subject.
Article
Food Science & Technology
Xiaolin Luo, Xiaoyuan Wang, Ming Du, Xianbing Xu
Summary: The determination of flavor compounds in food systems, especially solid samples, can be interfered with by complex food matrices. In this study, dispersive liquid-liquid microextraction (DLLME) was applied prior to headspace solid-phase microextraction (HS-SPME) to reduce the matrix effect in solid seafood samples. The developed method showed high sensitivity, excellent linear relationship, and good recovery rate, and was able to detect maltol and ethyl maltol in selected seafood samples. DLLME coupled with HS-SPME effectively removed the influence of sample matrix and improved the sensitivity of the method.
Article
Chemistry, Analytical
Philip Eor, Miles Byington, Jared L. Anderson
Summary: This study investigates the effects of environmental factors on the pi-complexation between silver(I) and copper(I) ions and aromatic compounds in ionic liquid media using headspace single drop microextraction coupled with HPLC. It is found that water and acetonitrile interfere with the complexation of silver(I) ions and aromatic compounds, while ethylene glycol and triethylene glycol do not.
JOURNAL OF SEPARATION SCIENCE
(2023)
Review
Chemistry, Analytical
Reham E. Kannouma, Mohamed A. Hammad, Amira H. Kamal, Fotouh R. Mansour
Summary: Liquid-phase microextraction (LPME) is an important technique for sample preparation that is widely used to extract various organic, inorganic, and pharmaceutical compounds from different environmental and biological matrices. LPME has three configurations - single drop microextraction, hollow-fiber liquid-phase microextraction, and dispersive liquid-liquid microextraction - each with different applications and advantages.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Applied
Joao Raul Belinato, Jonathan J. Grandy, Abir Khaled, Paola Alejandra Ortiz Suarez, Janusz Pawliszyn
Summary: The study introduced a fully automated method for quantitative analysis of pyrethroids in honey using GC-MS, overcoming challenges presented by complex matrices and achieving satisfactory results within a wide linear range.
Article
Chemistry, Applied
J. A. Custodio-Mendoza, C. Caamano-Fernandez, M. A. Lage, P. J. Almeida, R. A. Lorenzo, A. M. Carro
Summary: A new, fast, simple, and effective UA-DLLME method was successfully developed and validated for the determination of malondialdehyde, acrolein, and 4-hydroxy-2-nonenal in beverages. The method demonstrated good linearities, recoveries, and reproducibility, and was applied to analyze 60 different beverage samples, showing the presence of secondary lipid oxidation products.
Article
Chemistry, Analytical
Maria Antonieta P. A. Santiago, Jeancarlo Pereira dos Anjos, Madson M. Nascimento, Gisele O. da Rocha, Jailson B. de Andrade
Summary: The study developed a sample preparation method for multiple pesticides in red and rose wines using binary solvent liquid phase microextraction, demonstrating good linearity and precision values, enabling the detection and quantification of low levels of pesticide residues.
MICROCHEMICAL JOURNAL
(2021)
Article
Biochemical Research Methods
Benyuan Qin, Xiaoyu Wang, Lu Tang, Sainan Wang, Ying Shi, Liyan Zhao, Hongmei Jiang
Summary: This study developed a headspace single-drop microextraction (HS-SDME) method and a headspace (HS) method for determining methanol, and analyzed various factors affecting the extraction efficiency. The results showed that HS-SDME-GC-FID had a lower limit of detection and better reproducibility, making it suitable for the determination of methanol in wine.
JOURNAL OF CHROMATOGRAPHY A
(2022)
Article
Chemistry, Analytical
Zongbao Chen, Juan Wang, Qingqing Li, Yaping Wu, Yongjun Liu, Qingqing Ding, Hui Chen, Wenmin Zhang, Lan Zhang
Summary: A hollow zirconium-porphyrin-based metal-organic framework was used as a coating for solid-phase microextraction (SPME) fiber to determine naphthols. The coating showed good extraction performance due to its rich forces and special hollow structure, allowing for a time-saving equilibrium time and higher extraction capacity. The developed method combined with GC-MS/MS demonstrated low detection limit, wider linear range, and good reproducibility for naphthols in water samples.
ANALYTICA CHIMICA ACTA
(2022)
Article
Biochemical Research Methods
Jae Bem You, Detlef Lohse, Xuehua Zhang
Summary: The article introduces a green, fast one-step method called nanoextraction for extraction and detection of target analytes from dense suspensions, achieving a limit of detection for a fluorescent model analyte obtained from particle suspension samples. Research shows that high particle concentration in suspension samples does not reduce extraction efficiency.
Article
Chemistry, Analytical
Gabriela Mafra, Camila Will, Ricardo Huelsmann, Josias Merib, Eduardo Carasek
Summary: In this study, a lab-made parallel single-drop microextraction methodology using a magnetic ionic liquid was developed to determine pesticides in human urine samples. The method exhibited satisfactory analytical performance and was successfully applied to two human urine samples.
JOURNAL OF SEPARATION SCIENCE
(2021)
Review
Chemistry, Analytical
Jaime Millan-Santiago, Rafael Lucena, Soledad Cardenas
Summary: Lignocellulosic materials have emerged as a sustainable alternative in microextraction techniques, adhering to principles of Green Analytical Chemistry. Their porosity, shape, and rigidity allow for use in ambient ionization mass spectrometry techniques, particularly in wooden-tip electrospray ionization mass spectrometry. They can be used for direct analysis of complex samples, with the potential for surface modification to enhance interaction with target compounds.
JOURNAL OF SEPARATION SCIENCE
(2022)
Article
Chemistry, Analytical
Francisco Antonio Casado-Carmona, Juan Manuel Jimenez-soto, Rafael Lucena, Soledad Cardenas
Summary: Sampling at multiple locations is crucial for providing complete and representative information due to the spatial heterogeneity of environmental systems. A portable, simple, and low-cost device has been developed for the simultaneous on-site extraction of multiple environmental water samples, demonstrating potential applications for atrazine and simazine isolation and preconcentration in environmental water analysis.
ANALYTICA CHIMICA ACTA
(2022)
Article
Biochemical Research Methods
Jaime Millan-Santiago, Rafael Lucena, Soledad Cardenas
Summary: This article explores the potential of pre-cleaned bare wooden toothpicks (pb-WTs) for drug extraction from oral fluid samples and proposes a method to improve the analytical performance. The study investigates the variables affecting the extraction of antidepressant drugs and validates the optimized procedure. The results demonstrate good detection limits and precision. Furthermore, the potential of pb-WTs for in vivo sampling is outlined.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2022)
Article
Biochemical Research Methods
Marco Cirrincione, Rafael Lucena, Michele Protti, Laura Mercolini, Soledad Cardenas
Summary: This article presents the synthesis of a polyimide coated paper using a high-temperature in-situ imidization method and investigates its characteristics and application in sample preparation. Through the extraction of methadone, the synthesized material's effectiveness in analytical problems is demonstrated.
JOURNAL OF CHROMATOGRAPHY A
(2022)
Article
Biochemical Research Methods
Beatriz Fresco-Cala, Angela Lopez-Lorente, Alex D. Batista, Mehmet Dinc, Joachim Bansmann, R. Juergen Behm, Soledad Cardenas, Boris Mizaikoff
Summary: The development of synthetic particles that mimic real viruses is essential for the advancement of molecularly imprinted polymer-based sorbent materials. In this study, gold nanoparticles were synthesized and modified to serve as surrogates for adenovirus type 5. The successful attachment of the most abundant protein of the virus, hexon protein, to the surface of the nanoparticles was achieved through both non-covalent and covalent methods. This research demonstrates the importance of developing synthetic particles that closely resemble viruses for the development of advanced sorbent materials.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Carmina Vejar-Vivar, Jaime Millan-Santiago, Claudia Mardones, Rafael Lucena, Soledad Cardenas
Summary: This study evaluates polydopamine inner wall-coated hypodermic needles as microextraction devices and electrospray ionization emitters for determining illicit drugs in oral fluid samples.
Article
Biochemical Research Methods
Inmaculada Lopez-Ruiz, Guillermo Lasarte-Aragones, Rafael Lucena, Soledad Cardenas
Summary: Paper-based sorptive phases have been developed with deep eutectic solvents (DES) as coating for the isolation and analysis of selected triazine herbicides in environmental water samples. The method demonstrates good sensitivity, accuracy, and precision, with wide applicability.
JOURNAL OF CHROMATOGRAPHY A
(2023)
Article
Chemistry, Analytical
Saloua Hammadi, Jaime Millan-Santiago, Latifa Latrous El Atarche, Rafael Lucena, Soledad Cardenas
Summary: This article describes the use of wooden tips as substrates under a hybrid microextraction format, which combines the extraction capacities of wood and an organic solvent. 1-octanol is selected as the solvent and the extraction capabilities of octanol-supported wooden tips are studied using non-steroidal anti-inflammatory drugs as model analytes. The impact of wood matrix compounds on determining the analytes by mass spectrometry is also studied.
MICROCHEMICAL JOURNAL
(2023)
Article
Biochemical Research Methods
Carlos Calero-Canuelo, Francisco Antonio Casado-Carmona, Rafael Lucena, Soledad Cardenas
Summary: This article describes the synthesis of mixed-mode cationic exchange (MCX) tapes as sorptive phases in bioanalysis, and it faces the determination of methadone and tramadol in saliva as the model analytical problem. The tapes are synthesized using aluminum foil as a substrate, which is subsequently covered with double-sided adhesive tape where the MCX particles finally adhere. Under the optimum conditions and using direct infusion mass spectrometry as the instrumental technique, detection limits as low as 3.3 μg·L-1 were obtained. The precision and accuracy of the method were also evaluated and found to be satisfactory.
JOURNAL OF CHROMATOGRAPHY A
(2023)
Article
Engineering, Environmental
Francisco Antonio Casado-Carmona, Rafael Lucena, Soledad Cardenas
Summary: This article presents a new device based on open-source technologies for on-site extraction of isoflavones from environmental waters. The device is operated by an Arduino microcontroller and integrates sensors to provide real-time information. The extraction unit utilizes a planar sorptive phase and the samples are analyzed in the lab using liquid chromatography coupled with mass spectrometry. The method shows good precision and accuracy, and the importance of isotopically labeled compounds for normalizing extraction variables is discussed.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Jose Estrada-Pomares, Susana Ramos-Terron, Guillermo Lasarte-Aragones, Rafael Lucena, Soledad Cardenas, Daily Rodriguez-Padron, Rafael Luque, Gustavo de Miguel
Summary: This study presents the synthesis and characterization of two bismuth-based halide perovskites. Cs2AgBiBr6 exhibits better absorption in the visible region compared to Cs3Bi2Br9. Both materials can be used as photocatalysts for the oxidation of vanillyl alcohol.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Review
Environmental Sciences
Jaime Millan-Santiago, Francisco Antonio Casado-Carmona, Rafael Lucena, Soledad Cardenas
Summary: Polymeric nanocomposites are widely used as sorbents for extracting pollutants from environmental waters before their final instrumental analysis. These materials are highly versatile and can be adapted to a given analytical problem by selecting the appropriate polymer/nanomaterial combination. The adaptability is enhanced by their easy preparation in the laboratory and the availability of different formats (particles, membranes, monoliths, or fibers). This article provides a general overview of the potential of polymeric nanocomposites, with a focus on the practical aspects of synthesis and microextraction techniques. It aims to inspire researchers by showcasing the almost endless possibilities of these materials in sample preparation and highlighting the main trends in the near future.
CURRENT OPINION IN ENVIRONMENTAL SCIENCE & HEALTH
(2022)