Article
Chemistry, Analytical
Blanka Mikova, Milos Dvorak, Lenka Rysava, Zdenka Mala, Petr Gebauer, Pavel Kuban
Summary: Direct analysis of complex samples is achieved by coupling HF-LPME with CE, demonstrating excellent repeatability and sensitivity. The use of 3D-printed devices ensures stability and reproducibility of the analysis. Coupling HF-LPME with ITP-ESI-MS further enhances selectivity and sensitivity of the analytical method.
Article
Chemistry, Analytical
Xiaochong Song, Siyu Luo, Jun Liu, Yuanfei Wu, Xiaojia Huang
Summary: Efficient separation and enrichment of Se(iv) and Se(vi) species in water samples were achieved in this study using online monolith-based magnetic field-assisted in-tube solid phase microextraction (MFA/IT-SPME). The application of a magnetic field during the extraction procedure significantly improved the extraction efficiency. The developed method combined with HPLC allowed for the quantification of Se(iv) and Se(vi) in environmental water samples with satisfactory results.
Article
Chemistry, Analytical
M. C. Villegas-Alvarez, A. Arias-Borrego, I. Velasco, T. Garcia-Barrera
Summary: Sample treatment is a bottleneck in untargeted metabolomics, especially for complex samples like food or biofluids. This study developed a new analytical extraction method called three-phase-UA-HF-LPME, which improved the extraction efficiency and was validated using human milk. The method showed better sensitivity, enrichment factors, and metabolite coverage compared to the conventional liquid-liquid extraction method.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Lenka Rysava, Jana Dorazilova, Milos Dvorak, Petr Sedlacek, Lucy Vojtova, Pavel Kuban
Summary: Polymeric foams made of PVP and CMC07/OC were developed as sorbents for DBS collection and analysis, showing great potential for use in this field.
ANALYTICA CHIMICA ACTA
(2023)
Review
Chemistry, Analytical
Sunkyung Jeong, Laszlo Hajba, Andras Guttman, Jiwoong Seol, Doo Soo Chung
Summary: Capillary electrophoresis (CE) is a powerful analytical technique for complex samples, but suffers from poor sensitivity and sample destacking. This review discusses the use of in-line solid-phase microextraction (SPME) and liquid-phase microextraction (LPME) techniques in CE, without the need for complex modifications to the commercial CE instrument. In-line coupling allows for reduced sample loss and increased enrichment factors, making it a valuable tool for analyzing trace substances in complex biological matrices.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(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)
Review
Chemistry, Analytical
Robert Clough, Chris F. Harrington, Steve J. Hill, Yolanda Madrid, Julian F. Tyson
Summary: The 13th Atomic Spectrometry Update (ASU) focuses on advances in elemental speciation, covering a variety of analytical atomic spectrometry methods developed for different areas of research. The number of publications on arsenic and selenium speciation remains similar to last year, while studies on mercury, iron, halogen, and sulfur speciation have increased, demonstrating the diversity and expansion of research in this field.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2022)
Article
Chemistry, Analytical
Myriam Diaz-Alvarez, Esther Turiel, Antonio Martin-Esteban
Summary: This study proposes a new method using hydrophobic natural deep eutectic solvents as supported liquid membranes for the extraction of triazines from water samples. The optimized method demonstrates excellent clean-up ability and extraction efficiency and can be applied to different types of water samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Leyla Haidari-Khoshkelat, Jahan Bakhsh Raoof, Milad Ghani, Reza Ojani
Summary: In this study, a combination of two extraction techniques was used to analyze antibiotics in water and urine samples. The method was found to accurately quantify the selected analytes and was applicable to complex biological samples.
ANALYTICA CHIMICA ACTA
(2022)
Article
Engineering, Chemical
Kaibo Hu, Wenyi Zhang, Yucheng Liu, Qian Xu, Tianci Chen, Jiuyang Lin, Xuewei Li, Yinhua Wan
Summary: Separation of yttrium (Y) from Y-rich heavy rare earth groups is challenging due to their similar properties. This study developed a new method for Y separation using hollow fiber renewal support liquid membrane (HFRLM) with an amine-group-functionalized ionic liquid ([N1888][CA12]) system, eliminating the need for acids and bases. The [N1888][CA12]-HFRLM system showed high extraction efficiency and stability, leading to an increase in Y molar ratio from 70.9% to over 98.4%.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Haoran Liu, Yiwen Wang, Ruijie Fu, Jing Zhou, Yanlin Liu, Qiyang Zhao, Jingjing Yao, Yongliang Cui, Chengqiu Wang, Bining Jiao, Yue He
Summary: The study improved the traditional ELISA method by using gold nanorods to achieve visual semiquantitative detection of CBD, allowing for easy differentiation of CBD concentrations by the naked eye. This innovative approach shows promising application prospects in food safety and international trade.
ANALYTICAL METHODS
(2021)
Article
Biochemical Research Methods
Jie Bai, Li-yuan Xie, Li Yang, Run-qin Wang, Xuan Chen, Shuang Hu
Summary: A novel hollow fiber liquid phase microextraction method using reversed lipid micelle was developed for the determination of rotigotine in biological samples. Through optimization and validation, the method showed good accuracy, precision, and feasibility in pharmacokinetic studies.
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
(2021)
Article
Chemistry, Multidisciplinary
Wen-Hsiung Lai, David K. Wang, Hui-Hsin Tseng, Ming-Yen Wey
Summary: Highly selective poly(S-IL) hollow fiber membranes were developed by synthesizing and coating a styrene-based IL monomer, achieving an increased CO2/N-2 selectivity of 29 and a final CO2 permeance of 3.6 GPU through optimization of polymerization conditions. Testing at higher temperatures led to increased gas permeance and selectivity, with a peak CO2/N-2 selectivity of 35 at 50 degrees C.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Analytical
Li Hsin Tseng, Pei-Chi Liang, Tai-Chia Chiu, Ming-Mu Hsieh
Summary: This study developed a facile and highly sensitive technique for extracting and quantifying barbiturates in serum samples. By combining ultrasound and surfactant-assisted dispersive liquid-liquid microextraction with poly(ethylene oxide)-mediated stacking in capillary electrophoresis, the researchers were able to achieve optimal detection sensitivity. The method showed excellent linearity and recovery rates for spiked serum samples, making it a rapid and practical approach for quantifying barbiturates in biological fluids.
JOURNAL OF SEPARATION SCIENCE
(2023)
Review
Biochemistry & Molecular Biology
Ewa Pobozy, Marek Trojanowicz
Summary: Capillary electrophoresis (CE) is a key technique in modern analytical chemistry for high-performance separations, with applications in biochemistry and water analysis. Its advantages include different detection techniques, in-capillary sample processing, and ease of miniaturization.
Article
Chemistry, Analytical
Ying Gao, Ralph E. Sturgeon, Zoltan Mester, Xiandeng Hon, Chengbin Zheng, Lu Yang
ANALYTICAL CHEMISTRY
(2015)
Article
Chemistry, Analytical
Ke Huang, Kailai Xu, Wei Zhu, Lu Yang, Xiandeng Hou, Chengbin Zheng
ANALYTICAL CHEMISTRY
(2016)
Article
Chemistry, Analytical
Shu Zhang, Hong Luo, Mengting Peng, Yunfei Tian, Xiandeng Hou, Xiaoming Jiang, Chengbin Zheng
ANALYTICAL CHEMISTRY
(2015)
Article
Chemistry, Analytical
Yun Jia, Huimin Yu, Li Wu, Xiandeng Hou, Lu Yang, Chengbin Zheng
ANALYTICAL CHEMISTRY
(2015)
Article
Chemistry, Analytical
Ke Huang, Kailai Xu, Jie Tang, Lu Yang, Jingrong Zhou, Xiandeng Hou, Chengbin Zheng
ANALYTICAL CHEMISTRY
(2015)
Article
Chemistry, Analytical
Huimin Yu, Xi Ai, Kailai Xu, Chengbin Zheng, Xiandeng Hou
Article
Chemistry, Analytical
Piaopiao Chen, Peng Wu, Junbo Chen, Peng Yang, Xinfeng Zhang, Chengbin Zheng, Xiandeng Hou
ANALYTICAL CHEMISTRY
(2016)
Article
Engineering, Environmental
Yao Lin, Yuan Yang, Yuxuan Li, Lu Yang, Xiandeng Hou, Xinbin Feng, Chengbin Zheng
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2016)
Article
Chemistry, Analytical
Xue Jiang, Xinliang Xu, Xiandeng Hou, Zhou Long, Yunfei Tian, Xiaoming Jiang, Fujian Xu, Chengbin Zheng
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2016)
Article
Chemistry, Analytical
Xiaodong Wen, Ying Gao, Peng Wu, Zhiqiang Tan, Chengbin Zheng, Xiandeng Hou
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2016)
Article
Chemistry, Analytical
Ruoxi Zhang, Biao Shen, Chenghui Li, Chengbin Zheng, Xiandeng Hou
MICROCHEMICAL JOURNAL
(2016)
Article
Chemistry, Analytical
Ruoxi Zhang, Mengting Peng, Chengbin Zheng, Kailai Xu, Xiandeng Hou
MICROCHEMICAL JOURNAL
(2016)
Article
Chemistry, Analytical
Ying Zheng, Zhuo Chen, Chengbin Zheng, Yong-Ill Lee, Xiandeng Hou, Li Wu, Yunfei Tian
Article
Chemistry, Physical
Dan Zhou, Liangbo He, Wenxin Zhu, Xiandeng Hou, Kunyang Wang, Gu Du, Chengbin Zheng, Xuping Sun, Abdullah M. Asiri
JOURNAL OF MATERIALS CHEMISTRY A
(2016)
Article
Chemistry, Analytical
Yao Lin, Yuyang Li, Hongqi Chang, Simin Ye, Yi Ye, Lin Yang, Linchuan Liao, Hao Dai, Zeliang Wei, Yurong Deng, Jinyi Zhang, Chengbin Zheng
Summary: The excessive consumption of THC poses severe health risks and public safety concerns. However, the quantification of THC using simple and cost-effective tools remains challenging. In this study, researchers developed a label-free ratiometric fluorescent sensor based on THC1.2/ThT and red CdTe quantum dots for the instant monitoring of THC and its metabolite THC-COOH.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Gang Qu, Yuxin Zhao, Qiaoli Zhang, Jina Wu, Xiaosen Li, Yang Yang, Shilei Liu
Summary: In this study, magnetic mesoporous materials combined with real-time in situ mass spectrometry were used for the high-throughput detection of hydrolyzed products of organophosphorus nerve agents. The method showed good linearity, low limits of detection and quantification, and high extraction recoveries. The magnetic preparation method used was quick, cost-effective, rugged, and safe. The results demonstrated the potential of this method for rapid and efficient determination of the target analytes in environmental samples.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Anna Hildebrand, Mariam Merchant, Danny O'Hare
Summary: Substandard and falsified artemisinin derivatives in antimalarials have caused significant deaths and economic losses. This study evaluates the feasibility of voltammetric methods for identifying and quantifying artemether. The findings suggest that electrochemical analysis shows promise as a method for artemether identification and quantification.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Marx Osorio Araujo Pereira, Alvaro Ferreira Junior, Edson Silvio Batista Rodrigues, Helena Mulser, Giovanna Nascimento de Mello e Silva, Wallans Torres Pio dos Santos, Eric de Souza Gil
Summary: Brazilian spotted fever (BSF) is a serious and rapidly evolving disease. A new impedimetric immunosensor was developed for rapid diagnosis by measuring specific antibodies in plasma. The sensor demonstrated selectivity and accuracy, and has potential for important applications in diagnostic testing.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Kathrin Schilling, Ronald A. Glabonjat, Olgica Balac, Marta Galvez-Fernandez, Arce Domingo-Relloso, Vesna Slavkovich, Jeff Goldsmith, Miranda R. Jones, Tiffany R. Sanchez, Ana Navas-Acien
Summary: Analysis of trace elements in urine is an important tool for assessing exposures, diagnosing nutritional status, and guiding public health and healthcare intervention. This study provides a sensitive method for analyzing 18 elements in urine samples, using only 100 μL. The results show good accuracy and sensitivity of the method.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Mengya Li, Shijie Liu, Shiliang Guo, Dong Liang, Miaoyun Li, Yaodi Zhu, Lijun Zhao, Jong-Hoon Lee, Gaiming Zhao, Yangyang Ma, Yanxia Liu
Summary: In this study, a magnetic flow device was developed to purify spores in a culture medium system. The device used magnetic nanoparticles to absorb vegetative cells, separating them from the spores. The achieved purity of the collected spores was over 95%. The study also demonstrated a rapid quantitative detection method using Raman spectroscopy.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Wanqiong Liu, Zixuan Wu, Jianwei Peng, Zebin Xu, Yong Liang
Summary: Metal-organic frameworks (MOFs) are effective carriers for molecular imprinting, but their poor dispersibility in aqueous solution is a significant drawback. In this study, we have applied amphiphilic block copolymers and molecularly imprinted technology on MOFs to improve the hydrophilicity of molecularly imprinted fluorescent materials.
ANALYTICAL METHODS
(2024)