Article
Chemistry, Applied
Mary Angela Favaro Perez, Daniela Daniel, Marisa Padula, Claudimir Lucio do Lago, Carla Beatriz Grespan Bottoli
Summary: This study developed an efficient method for the rapid detection of primary aromatic amines in cooking utensils, revealing that some of the samples did not meet the standards.
Article
Food Science & Technology
Yanmei Feng, Ying Xu, Wenrui Li, Shasha Chen, Zhuoqun Su, Lingyi Xi, Guoliang Li
Summary: Novel Fe3O4@COP adsorbents were synthesized for effectively enriching HAAs, and a reliable method for HAAs detection was developed by magnetic solid-phase extraction combined with HPLC-MS/MS. Results showed that different thermal processing methods promoted the generation of HAAs, with Norharman and Harman being the predominant HAAs in thermally processed meat products.
Article
Chemistry, Multidisciplinary
Hwajin Yun, Yoonjeong Chae, Eunji Kim, Hong Ki Kim, Sukhyeun Jang, Mu-Hyun Baik, Chi Won Ahn, Yonghee Lee
Summary: This study reports a simple but effective strategy to enhance the stability of delaminated MXenes by passivating vulnerable edges with heterocyclic aromatic amines. The functionalized pyrrole MXenes exhibit long-term anti-oxidation in aqueous solutions and higher electrochemical performance as a supercapacitor.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Chemistry, Analytical
Albert Perez-Alcaraz, Francesc Borrull, Marta Calull, Carme Aguilar
Summary: The consumption of synthetic cathinones has been increasing in recent years due to its affordability and accessibility as an alternative to amphetamines. Developing procedures capable of detecting and monitoring their consumption is crucial, and urine has been widely used for this purpose as it is non-invasive and provides larger sample volumes than other biological matrices. Chromatographic techniques are the most reported approach for determining cathinones in urine samples.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2021)
Review
Chemistry, Analytical
Didem Nur Unal, Sercan Yildirim, Sevinc Kurbanoglu, Bengi Uslu
Summary: Surfactants are frequently used in different fields of analytical chemistry to reduce the interfacial tension of immiscible liquids by forming micelles through hydrophobic and hydrophilic groups. Their use in techniques such as chromatography and electrochemistry has been noted for improving separation efficiency and increasing sensor selectivity and sensitivity.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Applied
Yanmei Feng, Yiheng Shi, Rui Huang, Panpan Wang, Guoliang Li
Summary: Novel cysteine-functionalized magnetic covalent organic frameworks were synthesized and used for magnetic solid-phase extraction (MSPE) to simultaneously detect acrylamide (AA) and heterocyclic aromatic amines (HAAs) in food. The developed method combined with HPLC-MS/MS showed good linearity, low limits of detection, and satisfactory recoveries. Actual sample analysis demonstrated the factors affecting the levels of AA and HAAs in French fries.
Review
Chemistry, Analytical
Sille Stepanova, Vaclav Kasicka
Summary: This paper provides a detailed overview of recent developments in separation and analysis of proteins using capillary electromigration (CE) methods. It discusses sample preparation, suppression of protein sorption, control of electroosmotic flow, specific CE methods for protein separation, and protein identification and quantification. Additionally, it showcases several novel applications of CE methods in protein analysis.
ANALYTICA CHIMICA ACTA
(2022)
Review
Chemistry, Medicinal
Hussain Alessa, Amr L. Saber, Jalal T. Althakafy
Summary: This study aimed to summarize recent outcomes of chromatographic methods, such as gas chromatography and high-performance liquid chromatography, used for the determination of melatonin over the past three decades.
ARCHIV DER PHARMAZIE
(2022)
Article
Chemistry, Analytical
Kevin Jooss, Luis F. Schachner, Rachel Watson, Zachary B. Gillespie, Sarah A. Howard, Marcus A. Cheek, Matthew J. Meiners, Amin Sobh, Jonathan D. Licht, Michael-Christopher Keogh, Neil L. Kelleher
Summary: The study introduces a new platform for separating and characterizing whole nucleosomes and their modifications, aiding in understanding epigenetic regulatory mechanisms. The platform offers low sample requirements and costs, with high detection sensitivity.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Natalia Kaczmarczyk, Julita Cizewska, Natalia Treder, Natalia Miekus, Alina Plenis, Piotr Kowalski, Anna Roszkowska, Tomasz Baczek, Ilona Oledzka
Summary: This study evaluates the impact of using ionic liquids (ILs) on the separation efficiency of biogenic amines (BAs) in micellar electrokinetic chromatography (MEKC). It found that ILs with chloride and tetrafluoroborate ions were the most effective, while ILs with trifluoromethanesulfonate and bis(trifluoromethylsulfonyl)imide ions disrupted the separation process. Overall, this study provides a critical assessment of the different types and concentrations of ILs in MEKC analysis of selected BAs.
Article
Food Science & Technology
Emel Oz, Eyad Aoudeh, Michael Murkovic, Fidel Toldra, Andrea Gomez-Zavaglia, Charles Brennan, Charalampos Proestos, Maomao Zeng, Fatih Oz
Summary: Heterocyclic aromatic amines (HAAs) are harmful substances formed during high-temperature cooking of protein-rich foods, linked to increased risk of cancers. HAAs have complex structures and are formed through reactions between amino acids, creatin(in)e, and sugars during cooking. Factors like food type, cooking temperature, and time influence HAAs formation. Understanding HAAs' chemistry and formation is important for risk assessment, innovative approaches for reducing HAAs formation, and protecting human health.
Article
Chemistry, Analytical
Oumaima El Ouahabi, Montserrat Mancera-Arteu, Laura Pont, Estela Gimenez, Victoria Sanz-Nebot, Fernando Benavente
Summary: This study compared the analysis of opioid peptides using on-line solid-phase extraction capillary liquid chromatography-mass spectrometry (SPE-CapLC-MS) and on-line solid-phase extraction capillary electrophoresis-mass spectrometry (SPE-CE-MS). The SPE-CapLC-MS method showed improved detection limits and sensitivity compared to the CapLC-MS method. A comparison with the valve-free C18-SPE-CE-MS method revealed noticeable differences in operation and instrumental setup.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Applied
Xiaohai Wu, Xianzhi Liu, Lan Yu, Chengwei Liu, Xin Lu, Min Chen, Shulin Zhao
Summary: A porous magnetic adsorbent (Fe3O4@SHCP) was constructed by post-modification with sulfonic acid groups and magnetic nanoparticles for the magnetic solid-phase extraction of heterocyclic aromatic amines (HAAs). This method showed high extraction efficiency and sensitivity, allowing accurate monitoring of HAAs in baked cakes, and successfully evaluating the effect of baking conditions on HAAs.
Review
Chemistry, Analytical
Ketki Bagwe, Noah Gould, Kendall R. Johnson, Alexander R. Ivanov
Summary: Tissues and cell populations exhibit high levels of heterogeneity at the cellular level, making it important to analyze smaller sample sizes to capture subtle differences between cells. Capillary electrophoresis coupled with mass spectrometry (CE-MS) is a powerful technique for proteomics and metabolomics analysis at the single-cell level, and this review focuses on its applications and recent advances in sample preparation, separation, MS acquisition, and data analysis.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2023)
Review
Food Science & Technology
Yifeng Lou, Qingyang Xu, Jiaqi Chen, Sen Yang, Zheng Zhu, Di Chen
Summary: This review outlines the latest developments in sample pre-treatment technology for zearalenone and its metabolites in food samples based on chromatography-mass spectrometry methods since 2012. It covers prominent technologies such as liquid-liquid extraction-based methods, solid-phase extraction-based methods, and QuEChERS extraction, providing valuable insights into their advantages and limitations for potential applications.
Article
Biochemistry & Molecular Biology
Providencia Gonzalez-Hernandez, Ana B. Lago, Jorge Pasan, Catalina Ruiz-Perez, Juan H. Ayala, Ana M. Afonso, Veronica Pino
Article
Biochemistry & Molecular Biology
Gabriel Gonzalez-Rodriguez, Ivan Taima-Mancera, Ana B. Lago, Juan H. Ayala, Jorge Pasan, Veronica Pino
Article
Chemistry, Analytical
Raul Gonzalez-Martin, Idaira Pacheco-Fernandez, Juan H. Ayala, Ana M. Afonso, Veronica Pino
Article
Biochemical Research Methods
Raul Gonzalez-Martin, Idaira Pacheco-Fernandez, Binoy Maiti, Juan H. Ayala, Ana M. Afonso, David Diaz Diaz, Veronica Pino
JOURNAL OF CHROMATOGRAPHY A
(2020)
Article
Chemistry, Analytical
Idaira Pacheco-Fernandez, Manuel Rentero, Juan H. Ayala, Jorge Pasan, Veronica Pino
ANALYTICA CHIMICA ACTA
(2020)
Article
Chemistry, Analytical
Priscilla Rocio-Bautista, Adrian Gutierrez-Serpa, Alexander John Cruz, Rob Ameloot, Juan H. Ayala, Ana M. Afonso, Jorge Pasan, Sabina Rodriguez-Hermida, Veronica Pino
Article
Biochemistry & Molecular Biology
Kristyna Mouckova, Idaira Pacheco-Fernandez, Juan H. Ayala, Petra Bajerova, Veronica Pino
Article
Biochemical Research Methods
Maria J. Trujillo-Rodriguez, Idaira Pacheco-Fernandez, Ivan Taima-Mancera, Juan H. Ayala Diaz, Veronica Pino
JOURNAL OF CHROMATOGRAPHY A
(2020)
Article
Nanoscience & Nanotechnology
Providencia Gonzalez-Hernandez, Adrian Gutierrez-Serpa, Ana B. Lago, Laura Estevez, Juan H. Ayala, Veronica Pino, Jorge Pasan
Summary: Metal-organic frameworks (MOFs) are used as sorbents in analytical microextraction applications for contaminants of emerging concern (CECs) from environmental liquid matrices. The interactions of target analytes with the frameworks can be comprehensively studied through single-crystal X-ray diffraction, computational analysis, and adsorption studies. A study on Zn-based layered pillared MOFs showed that CIM-81 has a high adsorption capacity for PPB, making it suitable for monitoring low levels of CECs.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Biochemical Research Methods
Jakub Sulc, Idaira Pacheco-Fernandez, Juan H. Ayala, Petra Bajerova, Veronica Pino
Summary: This study presents a miniaturized extraction/preconcentration method using a green aqueous biphasic system, which can efficiently extract personal care products from wastewater samples. The method is simple, cost-effective, and solvent-free, showing high enrichment factors and quantitative extraction efficiencies.
JOURNAL OF CHROMATOGRAPHY A
(2021)
Review
Chemistry, Analytical
Providencia Gonzalez-Hernandez, Idaira Pacheco-Fernandez, Fabio Bernardo, Vera Homem, Jorge Pasan, Juan H. Ayala, Nuno Ratola, Veronica Pino
Summary: The study developed a HS-SPME method using MOF CIM-80(Al) as extraction phase for simultaneous determination of methylsiloxanes and musk fragrances in environmental waters. The method showed improved detection limits and precision compared to commercial fibers, with potential application in seawater and wastewater analysis.
Article
Chemistry, Analytical
Providencia Gonzalez-Hernandez, Ana B. Lago, Jorge Pasan, Juan H. Ayala, Ana M. Afonso, Veronica Pino
LC GC NORTH AMERICA
(2019)
