Article
Chemistry, Physical
Jan Frederik Dohmann, Fabian Horsthemke, Verena Kuepers, Sophia Bloch, Yves Preibisch, Aleksei Kolesnikov, Martin Kolek, Marian Cristian Stan, Martin Winter, Peter Bieker
Summary: Rechargeable lithium metal-anode-based batteries face challenges in safety and performance, with ionic liquid-based electrolytes considered for improved safety but facing limitations. This study identifies galvanic corrosion as a contributing factor to battery deterioration, highlighting the need for more sophisticated electrode designs and electrolyte formulations.
ADVANCED ENERGY MATERIALS
(2021)
Review
Chemistry, Analytical
Marcelino Varona, Philip Eor, Luiz Carlos Ferreira Neto, Josias Merib, Jared L. Anderson
Summary: Metal-containing ionic liquids (MCILs) and magnetic ionic liquids (MILs) have shown great potential for analytical extractions and gas separations, with unique selectivity. This review discusses recent applications of MILs in analytical extractions and advancements of MCILs in facilitated transport membranes and gas chromatography.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Jocasta Avila, Chiara Corsini, Cintia M. Correa, Martin Rosenthal, Agilio Padua, Margarida Costa Gomes
Summary: This Perspective highlights the pathways to prepare porous ionic liquids using easily accessible materials for reduced environmental impact. The study demonstrates that suspensions of porous solids are stable in eutectic mixtures, which indicates their potential in preparing porous ionic liquids. Porous ionic liquids maintain the wide electrochemical window observed in their precursor pure ionic liquids, making them suitable for green electrochemical reactions, especially those involving gases with enhanced solubility in the porous suspensions. Furthermore, their capacity as gas-rich media suggests potential sustainable biomedical and pharmaceutical applications, provided that non-toxic, biocompatible ionic liquids and porous solids are utilized.
Article
Biochemical Research Methods
Zhibo Fu, Qiangqiang Jia, Hongyang Zhang, Lu Kang, Xuezhi Sun, Min Zhang, Yuerong Wang, Ping Hu
Summary: A new method for simultaneous quantification of eleven SCFAs by derivatization combined with SPME and GC-MS/MS was developed, showing satisfactory linearity, low LOD and LOQ, as well as good precision and recovery rates in validation.
JOURNAL OF CHROMATOGRAPHY A
(2022)
Review
Chemistry, Analytical
Sanka N. Atapattu, Azamat Temerdashev
Summary: Gas chromatography is a widely used analytical technique, but not all analytes can be directly analyzed. Analytical derivatization, such as injector port derivatization, is often required to improve the suitability of analytes for gas chromatographic analysis. This technique is easy to use, efficient, and requires fewer hazardous chemicals.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Samin Fathalinejad, Esben Taarning, Peter Christensen, Jan H. Christensen
Summary: This study developed a GC-MS identification workflow for carbohydrate fragmentation compounds, built a library of compounds detected by five different GC-MS methods, investigated and compared compound coverage among the methods, and explored possible reaction pathways for some analytes. A total of 389 compounds were detected, with solid-phase microextraction detecting the highest number of analytes and derivatization GC-MS technique detecting the lowest but largest molecules.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Biochemistry & Molecular Biology
Aline Zambom, Sergio M. Vilas-Boas, Liliana P. Silva, Monia A. R. Martins, Olga Ferreira, Simao P. Pinho
Summary: The potential of methylimidazolium-based ionic liquids (ILs) as solvents for terpene fractionation and fuel processing was studied. The results showed that ILs with long alkyl chains as cations can enhance the capacity, while the selectivity depends on the solute polarity.
Article
Polymer Science
Xueyan Liu, Chuxing Zhu, Kang Yu, Wei Li, Yingchun Luo, Yi Dai, Hao Wang
Summary: This study presents an accurate method for determining the moisture content in flavor microcapsules using headspace gas chromatography. The method involves measuring the gas chromatography signals of water vapor in a headspace vial containing flavor microcapsules. The results showed good precision and accuracy, making it suitable for testing the moisture content of flavor microcapsules and related products.
Article
Chemistry, Physical
Katherine Smart, Teresa D. Golden, William E. Acree Jr
Summary: The thermal degradation behavior of two ionic liquids was investigated using spectroscopic and thermal techniques to predict their phase stability in gas chromatography. The study found that lowering the heating rate decreased the decomposition temperature of the ionic liquids, and spectroscopic methods indicated lower decomposition temperatures compared to thermal scanning methods.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Biochemical Research Methods
Azam Gholizadeh, Mustahsin Chowdhury, Masoud Agah
Summary: This study investigates the impact of stationary phase coating on the separation efficiency of gas chromatography microcolumns, finding that higher temperature treatment can improve efficiency but may reduce peak symmetry, with the thermally treated stationary phase at 240 degrees Celsius demonstrating significantly higher efficiency and resolution.
JOURNAL OF CHROMATOGRAPHY A
(2021)
Article
Chemistry, Analytical
Congchao You, Tien Ho, Victor Rucker, Jerry Yeh, Lin Wang
Summary: A simple and universal headspace gas chromatography with flame ionization detection (HS-GC-FID) method is described for accurate quantification of volatile amines in pharmaceuticals. The addition of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) as an additive improves the detectability and method accuracy of residual volatile amines in pharmaceutical products. Method validation shows acceptable linearity, limit of detection, limit of quantitation, solution stability, precision, and robustness.
ANALYTICAL METHODS
(2023)
Article
Chemistry, Analytical
Xue-Yan Liu, Wei Li, Kang Yu, Zhi-Yu Fan, Bin Luo, Deng-Pan Nie, Ying-Chun Luo, Yi Dai, Hao Wang
Summary: This paper reports a method for determining the carbonate content in barite ore using headspace gas chromatography. The carbonate in the barite ore was converted to CO2 in a closed headspace vial, and its content was measured indirectly using a theoretical model. The method showed good precision and accuracy.
JOURNAL OF SEPARATION SCIENCE
(2023)
Article
Chemistry, Analytical
Simon Doblinger, Catherine E. Hay, Liliana C. Tome, David Mecerreyes, Debbie S. Silvester
Summary: This research investigates the use of mixed membranes composed of conductive poly(IL)s and ionic liquids in amperometric gas sensors. The study finds that the membranes exhibit high robustness and non-flowing properties, while also showing excellent and reproducible analytical responses towards gases. The results demonstrate the potential of these membranes as designer gas sensor materials for robust sensor devices.
ANALYTICA CHIMICA ACTA
(2022)
Article
Environmental Sciences
R. Ashouri, H. Shirkhanloo, A. M. Rashidi, S. A. H. Mirzahosseini, N. Mansouri
Summary: This study successfully removed benzene vapor using TPhPP][SUTO]-MWCNTs and optimized various factors in dynamic and static systems. High removal efficiency of benzene was achieved through chemical adsorption, and the results were validated by GC-MS and GC-FID.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Sanja Radman, Igor Jerkovic
Summary: The analysis of volatile organic compounds (VOCs) in two brown algae from the Adriatic Sea revealed differences between fresh and air-dried samples, particularly in the percentages of fatty acids and their derivatives, terpenes, and aliphatic compounds.
Review
Chemistry, Analytical
Michelle L. Schmidt, Nicholas H. Snow
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2016)
Article
Chemistry, Analytical
Brian B. Barnes, Michael B. Wilson, Peter W. Carr, Mark F. Vitha, Corey D. Broeckling, Adam L. Heuberger, Jessica Prenni, Gregory C. Janis, Henry Corcoran, Nicholas H. Snow, Shilpi Chopra, Ramkumar Dhandapani, Amanda Tawfall, Lloyd W. Sumner, Paul G. Boswell
ANALYTICAL CHEMISTRY
(2013)
Article
Chemistry, Analytical
Panagiotis Tavlarakis, Jonine Greyling, Nicholas H. Snow
ANALYTICAL METHODS
(2010)
Article
Biochemical Research Methods
Panagiotis Tavlarakis, John J. Urban, Nicholas Snow
JOURNAL OF CHROMATOGRAPHIC SCIENCE
(2011)
Article
Biochemical Research Methods
Brian B. Barnes, Nicholas H. Snow
JOURNAL OF CHROMATOGRAPHY A
(2012)
Article
Biochemical Research Methods
Paulo C. F. Lima Gomes, Brian B. Barnes, Alvaro J. Santos-Neto, Fernando M. Lancas, Nicholas H. Snow
JOURNAL OF CHROMATOGRAPHY A
(2013)
Article
Oceanography
Eric M. Stroud, Craig P. O'Connell, Patrick H. Rice, Nicholas H. Snow, Brian B. Barnes, Mohammed R. Elshaer, James E. Hanson
OCEAN & COASTAL MANAGEMENT
(2014)
Article
Chemistry, Analytical
Nicholas H. Snow, Jerianne Sinex, Mandelle Danser
LC GC NORTH AMERICA
(2010)
Article
Chemistry, Analytical
Brian Forsatz, Nicholas H. Snow
LC GC NORTH AMERICA
(2007)
Article
Biochemical Research Methods
I. L. Kazakevich, N. H. Snow
JOURNAL OF CHROMATOGRAPHY A
(2006)
Article
Biochemical Research Methods
JK Lokhnauth, NH Snow
JOURNAL OF CHROMATOGRAPHY A
(2006)
Article
Chemistry, Analytical
JK Lokhnauth, NH Snow
ANALYTICAL CHEMISTRY
(2005)
Article
Chemistry, Analytical
JK Lokhnauth, NH Snow
JOURNAL OF SEPARATION SCIENCE
(2005)
Article
Chemistry, Analytical
Christina M. Crimi, Nicholas H. Snow
LC GC NORTH AMERICA
(2008)
Correction
Biochemical Research Methods
Yong Wang, Suhua Yu, Rui Li, Jing Wan, Yuheng Wang, Zongli Huo, Chunyong Wu, Li Mi, Songqin Liu
JOURNAL OF CHROMATOGRAPHY A
(2024)
Review
Biochemical Research Methods
Israel D. Souza, Maria Eugenia C. Queiroz
Summary: Organic-silica hybrid monolithic materials have gained significant attention in separation science and sample preparation due to their unique properties. This review summarizes the characteristics, current status, and recent developments of these materials, as well as discusses synthesis methods, characterization techniques, and strategies for improving extraction efficiency in various applications.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Bhagwat Upreti, Bhanu Prasad Vempatapu, Jagdish Kumar, Pankaj K. Kanaujia
Summary: Lubricating oils are essential for the effective performance of internal combustion engines. This study presents a new HPLC method for determining additives in finished lubricating oils and polar substances in used engine oils.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Zongqing Huang, Haoju Hua, Xiuzhen Du, Zipeng Zhen, Wei Zhao, Jun Feng, Ji-an Li
Summary: This study successfully isolated VHHs against the SUMO protein for the first time using biopanning of an immune camelid nanobody library. The VHHs were coupled to agarose resins to form affinity chromatography resins, allowing for one-step purification of various SUMO fusions.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Xueting Qiu, Xuben Hou, Yue Yang, Hao Fang, Fei Cui, Xinying Yang
Summary: In this study, a new method based on electrophoretically mediated microanalysis was developed for the investigation of PTPRO enzymatic activity. The method was successfully used to determine the kinetics of PTPRO and the inhibitory concentration of PTPRO inhibitors. The method exhibited improved accuracy and reduced consumption compared to traditional methods.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Feifei Luo, Mengmeng Hao, Lei Zhang, Yangguo Xie, Wei Hou, Hongya Wang, Zhongli Zhang
Summary: In this study, a comprehensive screening and structure elucidation of 23 nonvolatile organic compounds (NVOCs) in two antibody drugs was conducted. Seven previously unreported compounds were identified. A quantitative method with high sensitivity, accuracy, and precision was developed for evaluating the safety of NVOCs in drug products.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Zuzana Vosahlova, Kveta Kalfkova, Martin Gilar, Jakub Szymarek, Maria Mazurkiewicz-Beldzinska, Sylwia Studzi
Summary: A hydrophilic interaction liquid chromatography method was developed for the separation and identification of oligonucleotide impurities and metabolites, and successfully applied to the analysis of serum samples from Spinraza-treated patients.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Aswanidevi Kongasseri, Thirumalai Madhesan, Sangeetha Krishna Kumar, Sushmitha Pedugu Sivaraman, Suchashrita Mitra, Pitchaiah Kancharlapalli Chinaraga, C. V. S. Brahmmananda Rao, Sivaraman Nagarajan, Prabhakaran Deivasigamani, Akhila Maheswari Mohan
Summary: This study focuses on the sequential separation of trivalent lanthanides using modified C-18 silica-packed supports and reversed-phase HPLC technique. By tuning the column modifiers and separation parameters, the researchers achieved systematic separation of Ln(3+). The results showed that the choice of column modifiers and fine-tuning of the modification procedure were crucial for achieving excellent separation.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Raquel Perez-Robles, Szabolcs Fekete, Robert Kormany, Natalia Navas, Davy Guillarme
Summary: There is a mismatch between the sample diluent and the mobile phase in HILIC analysis, leading to analyte breakthrough and peak distortion. Adding a weak solvent for pre-injection can effectively prevent these issues and improve sensitivity.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Oleg Pokrovskiy, Irina Rostovschikova, Konstantin Ustinovich, Ilya Voronov, Dmitry Kosyakov
Summary: A chromatography-like propagation of water through the material bed was observed during supercritical fluid extraction of aroma plants with high moisture content, which could be significant for modeling the kinetics of supercritical fluid extraction of non-volatile compounds.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Yasar Kemal Recepoglu, Ozguer Arar, Asli Yuksel
Summary: Biosorption using phosphorylated hazelnut shell waste (FHS) is a promising method for lithium removal and recovery. This study investigated the performance of a continuous-flow packed-bed column system using FHS for ultra-low level lithium removal. The results showed that the lihium biosorption capacity of the FHS column was unaffected by the bed height, but decreased with increasing flow rate.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Jian Sun, Zheheng Zheng, Zixiao Jia, Jiabin Wang, Xucong Lin
Summary: In this study, an ionic covalent organic framework (iCOF) surface grafting monolithic sorbent was prepared for in-tube solid-phase microextraction (SPME) of aristolochic acids (AAs) in various samples. The density of quaternary ammonium ions in the iCOF was modulated for enhanced adsorption of AAs. The iCOF surface grafting monolithic sorbent was confirmed by different means. Several operating conditions were optimized to develop the online in-tube SPME-HPLC method, which showed good linearity, low limits of detection, and high recoveries for AAs in serum samples. This study presents a feasible approach for the application of COF-based monolithic sorbents in sample preparation.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Zeng Wen, Ruihan Peng, Die Gao, Jing Lin, Jia Zeng, Zhou Li, Famin Ke, Zhining Xia, Dandan Wang
Summary: A chitosan-alginate sponge with multiple cross-linking networks was developed for adsorption and enrichment of anionic dyes from food samples. The sponge showed better three-dimensional network structure, mechanical behavior, and stability compared to pure chitosan and alginate sponges. The adsorption performance and selectivity of the sponge were systematically studied, and it maintained high adsorption capacity and selectivity for anionic dyes. The sponge also showed satisfactory reusability and was successfully combined with high-performance liquid chromatography for the enrichment and detection of anionic dyes in candy and cocktail samples.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Hairong Zhang, Xiaojuan Jiang, Dandan Zhang, Yuexin Yang, Qiang Xie, Caisheng Wu
Summary: Analysis of in vivo exposure to traditional Chinese medicine using mass spectrometry is helpful for identifying effective ingredients and developing new drugs. This study focused on Forsythia suspensa (Lian Qiao) and used metabolomics technology to explore its in vivo exposure. By comparing the differences before and after administration, a complete set of nontargeted analysis strategies for TCM exposure was established. The study identified 393 Lian Qiao-related chemical components in mice after administration, including prototypes and metabolites. This study provides a reference for research on the active ingredients of Lian Qiao in vivo.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Oscar Castejon-Musulen, Ricardo Lopez, Ignacio Ontan, Vicente Ferreira
Summary: A quantitative analytical method was developed and validated in this study to determine the concentrations of 81 aroma-relevant wine volatiles. The method utilizes stir bar sorptive extraction and multidimensional gas chromatography with flame ionization detector or mass spectrometer. The method demonstrated good linearity, reproducibility, and recovery, and was successfully applied to analyze 20 wine samples.
JOURNAL OF CHROMATOGRAPHY A
(2024)