Trends in Analytical Chemistry最新文献_第10页

Centrifugal-assisted sample preparation techniques: Innovations and applications in bioanalysis 离心辅助样品制备技术：生物分析中的创新与应用

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Trends in Analytical Chemistry Pub Date : 2024-08-13 DOI: 10.1016/j.trac.2024.117909

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Advanced applications of DNA hydrogels in fluorescence sensing DNA 水凝胶在荧光传感中的先进应用

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Trends in Analytical Chemistry Pub Date : 2024-08-13 DOI: 10.1016/j.trac.2024.117907

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Nanofibers prepared from synthetic polymers and biopolymers as advanced extraction materials for sample preparation prior to liquid chromatography 用合成聚合物和生物聚合物制备纳米纤维，作为液相色谱法前制备样品的先进提取材料

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Trends in Analytical Chemistry Pub Date : 2024-08-13 DOI: 10.1016/j.trac.2024.117912

{"title":"Nanofibers prepared from synthetic polymers and biopolymers as advanced extraction materials for sample preparation prior to liquid chromatography","authors":"","doi":"10.1016/j.trac.2024.117912","DOIUrl":"10.1016/j.trac.2024.117912","url":null,"abstract":"<div><p>Since the beginning of this millennium, there has been an increasing interest in nanofiber-based sorbents for extraction due to their accessibility, scalability, ease of handling, high surface area, variety of chemistries available, and applications in miniaturized methods. Organic and inorganic materials have been converted into nanofibers using various techniques to obtain sorbents for use in analytical chemistry, such as sensors, filter membranes, sorptive phases, and extraction media. Polymer nanofibers are mainly prepared by electrospinning of polystyrene, polyamides, and polyacrylonitrile. In contrast, this review aims to survey other polymers, including biopolymers and biodegradable polymers. In addition, the possibilities of innovative alternative fabrication techniques leading to fiber materials with unique mechanical properties are described. We also focus on unexplored extraction formats using polymer nanofibers. Examples of recent applications benefiting from desorption with minimal solvent volume and on-line hyphenation to chromatographic methods are reported. Finally, the future prospects of these nanosorbents are discussed.</p></div>","PeriodicalId":439,"journal":{"name":"Trends in Analytical Chemistry","volume":null,"pages":null},"PeriodicalIF":11.8,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0165993624003959/pdfft?md5=55b6d4ae9c882a45d679e49de3a058dd&pid=1-s2.0-S0165993624003959-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142049091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Recent advances and trends in the applications of nanomaterials in optical sensing platforms 纳米材料在光学传感平台中应用的最新进展和趋势

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Trends in Analytical Chemistry Pub Date : 2024-08-13 DOI: 10.1016/j.trac.2024.117914

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Recent trends in the use of silica-based materials and their composites in extraction techniques: A review 在萃取技术中使用硅基材料及其复合材料的最新趋势：综述

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Trends in Analytical Chemistry Pub Date : 2024-08-13 DOI: 10.1016/j.trac.2024.117910

{"title":"Recent trends in the use of silica-based materials and their composites in extraction techniques: A review","authors":"","doi":"10.1016/j.trac.2024.117910","DOIUrl":"10.1016/j.trac.2024.117910","url":null,"abstract":"<div><p>The application of silica-based materials (SBMs) such as silica nanoparticles (SiO2-NPs) and silica materials with mesoporous structures (for instance, MCM-48, SBA-15, and MCM-41) in analytical chemistry has caused huge consideration. Particularly, applying those materials in sorbent-based sorptive extraction/microextraction techniques has been in hotspots. SBMs have useful possessions such as modifying capability, high adsorption capacity, stability, and surface area. Therefore, SBMs have been broadly applied in various extraction procedures as sorbents. Respecting the attributes and advantages of SBMs, this article aims to assess the latest development and utilization of these materials in extraction techniques. This article is comprehensive in its scope, especially (a) SBMs and their properties are illustrated; (b) green synthesis of SBMs was investigated and discussed; (c) functionalized/modified SBMs (for instance, functionalized SBMs with deep eutectic solvents and ionic liquids) are investigated (d) different SBM composites (e.g, SBM-graphene, SBM-metal-organic framework, SBM-covalent organic framework, SBM-molecularly imprinted polymer, etc.); are reviewed; (e) applications of functionalized/modified SBMs and SBM composites in different extraction techniques are studied; (f) possible mechanisms for pre-concentrating and extracting analytes using SBMs from different samples are surveyed; and (g) current developments and perspectives of SBMs in analytical extraction processes are discussed. In our view, this article is new, informative, and timely, and will be interesting to a broad range of readers. Moreover, the review will be helpful for analytical extractants to understand further SBMs, their different composites, and their utilizations in extraction techniques.</p></div>","PeriodicalId":439,"journal":{"name":"Trends in Analytical Chemistry","volume":null,"pages":null},"PeriodicalIF":11.8,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141984764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Molecularly imprinted polymers @ metal and covalent organic frameworks: From synthesis to application in analytical chemistry 分子印迹聚合物 @ 金属和共价有机框架：从合成到在分析化学中的应用

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Trends in Analytical Chemistry Pub Date : 2024-08-13 DOI: 10.1016/j.trac.2024.117906

{"title":"Molecularly imprinted polymers @ metal and covalent organic frameworks: From synthesis to application in analytical chemistry","authors":"","doi":"10.1016/j.trac.2024.117906","DOIUrl":"10.1016/j.trac.2024.117906","url":null,"abstract":"<div><p>Since their introduction in the 1970s, molecularly imprinted polymers (MIPs) have been greatly applied in analytical chemistry as materials that enhance the selectivity of analytical methods. MIPs are mostly explored in sample preparation methods, as well as electrochemical and chemical sensors. In recent years, the preparation of these materials has been performed on the surface of metal and covalent organic frameworks (MIPs@MOFs and COFs). This initiative is mostly geared to improve the performance of MIPs further. The present paper provides a critical review of the synthesis and applications of MIPs@MOFs and COFs in environmental, biological, and food analysis while also highlighting the major gaps and challenges to be considered for future explorations. The findings of this review indicate that various synthetic routes are explored for the production of these materials. The analytical aspects are more centred on selective sample preparation tools such as solid-phase extraction and solid-phase microextraction, as well as the applications in sensor technology for the detection of various compounds in complex matrices.</p></div>","PeriodicalId":439,"journal":{"name":"Trends in Analytical Chemistry","volume":null,"pages":null},"PeriodicalIF":11.8,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0165993624003893/pdfft?md5=fe8b3350625e0a839dce5a874eb9e604&pid=1-s2.0-S0165993624003893-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142044391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Improvements in materials for microextraction techniques in pesticide analysis of fruit juices: Update of the last decade 果汁农药分析微萃取技术材料的改进：过去十年的最新进展

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Trends in Analytical Chemistry Pub Date : 2024-08-13 DOI: 10.1016/j.trac.2024.117911

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Lack of selectivity in sample preparation ‒ An achilles heel of compound-specific isotope analysis for environmental micropollutants 样品制备缺乏选择性--环境微污染物特定化合物同位素分析的致命弱点

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Trends in Analytical Chemistry Pub Date : 2024-08-12 DOI: 10.1016/j.trac.2024.117908

{"title":"Lack of selectivity in sample preparation ‒ An achilles heel of compound-specific isotope analysis for environmental micropollutants","authors":"","doi":"10.1016/j.trac.2024.117908","DOIUrl":"10.1016/j.trac.2024.117908","url":null,"abstract":"<div><p>The role of compound-specific isotope analysis (CSIA) in environmental research has been proven over the last few decades. Despite advances in analytical methods and instrumentation, applying CSIA to low-concentration environmental contaminants, especially at the field scale, remains limited. In this perspective paper, we argue that this limitation stems from underdeveloped sample preparation techniques, particularly the lack of required selectivity. Drawing from an extensive review of nearly 600 CSIA studies on contaminants, we (i) analyze methodologies' distribution and dedication to field studies, discussing their connection with the maturity of suitable sample preparation techniques. Additionally, we (ii) examine general trends in sorbent phase technologies, assessing their adequacy to meet CSIA's targeted nature and applicability to micropollutants. In advocating for a paradigm shift, we (iii) emphasize the need to adapt future CSIA development strategies in light of past and current innovations.</p></div>","PeriodicalId":439,"journal":{"name":"Trends in Analytical Chemistry","volume":null,"pages":null},"PeriodicalIF":11.8,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0165993624003911/pdfft?md5=31bef08de6951467fc7ec6714413b306&pid=1-s2.0-S0165993624003911-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141997551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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A comprehensive review on synthesis and applications of cryogel-based sorbents in solid-phase extraction techniques 低温凝胶基吸附剂的合成及在固相萃取技术中的应用综述

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Trends in Analytical Chemistry Pub Date : 2024-08-09 DOI: 10.1016/j.trac.2024.117899

{"title":"A comprehensive review on synthesis and applications of cryogel-based sorbents in solid-phase extraction techniques","authors":"","doi":"10.1016/j.trac.2024.117899","DOIUrl":"10.1016/j.trac.2024.117899","url":null,"abstract":"<div><p>Cryogels are three-dimensional porous materials created by polymerizing water-soluble monomers and crosslinkers at sub-zero temperatures. Cryogel-based sorbents, with their distinct physical and chemical characteristics such as superporosity, elasticity, water permeability, and ease of chemical modification, hold promise in revolutionizing sample preparation across diverse applications. This review aims to offer a comprehensive overview of the materials used and synthesis methods, encompassing free radical polymerization, irradiation polymerization, condensation polymerization, and self-assembly gel formation. Moreover, it covers characterization methods such as Fourier-transform infrared spectroscopy, Scanning electron microscopy, nitrogen porosimetry, swelling and mechanical properties. Furthermore, the review highlights the advantages of cryogels over other conventional sorbents, emphasizing their remarkable extraction efficiency and selectivity when applied to various real samples, including foods, environmental and biological samples. The review also delves into recent advancements in the utilization of cryogels as sorbents in diverse solid-based extraction procedures, addressing current obstacles in this research domain and offering insights into future prospects.</p></div>","PeriodicalId":439,"journal":{"name":"Trends in Analytical Chemistry","volume":null,"pages":null},"PeriodicalIF":11.8,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141979508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Trends in organ-on-a-chip for pharmacological analysis 用于药理分析的片上器官的发展趋势

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Trends in Analytical Chemistry Pub Date : 2024-08-09 DOI: 10.1016/j.trac.2024.117905

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