Applied Spectroscopy Reviews最新文献

{"title":"Liquid-phase extraction combined with X-ray fluorescence spectrometry for the elemental determination","authors":"Vanessa J. Ferreira, Fernanda B. S. Virgens, Laís N. Pires, F. Dias, V. Lemos, L. Teixeira","doi":"10.1080/05704928.2022.2113537","DOIUrl":"https://doi.org/10.1080/05704928.2022.2113537","url":null,"abstract":"Abstract X-ray fluorescence spectrometry (XRF) has been widely used for multi-element determination in various samples. However, when trace level determination is required, separation and preconcentration procedures are often used as a step before detection to avoid or reduce interferences and to increase sensitivity. Liquid-phase extraction (LPE) is one of the most well-known and applied pretreatment techniques associated with atomic spectrometry due to its simplicity, speed, and ease of automation. A review of methods involving LPE combined with XRF is presented. Methods described in the literature are discussed, involving conventional LPE and the three main categories of liquid-phase microextraction (LPME): single-drop microextraction (SDME), dispersive liquid–liquid microextraction (DLLME), and hollow fiber liquid-phase microextraction (HF-LPME). Characteristics of the methods are presented, considering experimental aspects, analytical features, advantages, and disadvantages. In addition, trends in the association between LPME techniques and XRF are presented.","PeriodicalId":8100,"journal":{"name":"Applied Spectroscopy Reviews","volume":"102 1","pages":"610 - 628"},"PeriodicalIF":6.1,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90327546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strategies for sensitivity improvement of localized surface plasmon resonance sensors: experimental and mathematical approaches in plasmonic gold nanostructures","authors":"J. Ha","doi":"10.1080/05704928.2022.2104864","DOIUrl":"https://doi.org/10.1080/05704928.2022.2104864","url":null,"abstract":"Abstract Localized surface plasmon resonance (LSPR) sensors using metallic nanoparticles are extensively used for refractive index (RI) measurements in chemical and biological studies, and their sensitivity is highly influenced by the material and structure of the nanoparticle. Despite the great advantages of LSPR sensors using frequency shifts, there are still major challenges in terms of detection sensitivity as well as the broadening and asymmetry of LSPR peaks. This article provides a general background of the fundamentals of LSPR and RI-based LSPR sensing. Thereafter, recent advances in the improvement of LSPR sensitivity are discussed in the viewpoints of two experimental and mathematical approaches. The experimental approaches, including the fabrication of plasmonic array nanostructures with high uniformity and site-selective immobilization, are briefly discussed. Later, we discuss recent studies using a simple mathematical approach with LSPR inflection point to improve the RI sensitivity in gold nanoparticles with different shapes, sizes, shells, etc.","PeriodicalId":8100,"journal":{"name":"Applied Spectroscopy Reviews","volume":"47 4","pages":"346 - 365"},"PeriodicalIF":6.1,"publicationDate":"2022-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72584596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review of near infrared hyperspectral imaging applications related to wood and wood products","authors":"L. Schimleck, Te Ma, T. Inagaki, S. Tsuchikawa","doi":"10.1080/05704928.2022.2098759","DOIUrl":"https://doi.org/10.1080/05704928.2022.2098759","url":null,"abstract":"Abstract Hyperspectral imaging is a technique that combines spectroscopy and imaging. Originally utilized in the 1980’s by the remote sensing community it is now utilized in a wide variety of applications. Spectral imaging was first used for the detection of compression wood in the late 1990’s and since that time research focused on wood and wood products has steadily increased with a variety of applications reported. While there are several reviews of wood related research utilizing near infrared spectrometers a comprehensive summary of wood—hyperspectral imaging research is lacking. Near infrared hyperspectral imaging systems (NIR-HSI) typically have a wavelength range of 900–1700 nm, whereas short-wave infrared hyperspectral imaging (SWIR-HSI) systems range from 1000 to 2500 nm. We provide a detailed account of the various studies that have been published utilizing both camera types.","PeriodicalId":8100,"journal":{"name":"Applied Spectroscopy Reviews","volume":"52 1","pages":"585 - 609"},"PeriodicalIF":6.1,"publicationDate":"2022-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74041444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An overview of methodologies for the determination of volatile organic compounds in indoor air","authors":"T. Vera, F. Villanueva, L. Wimmerova, E. Tolis","doi":"10.1080/05704928.2022.2085735","DOIUrl":"https://doi.org/10.1080/05704928.2022.2085735","url":null,"abstract":"Abstract Volatile organic compounds are a broad and important class of pollutants affecting the indoor air quality. They are emitted from commercial products, building materials, furniture, occupant activities and even occupants, etc., and can participate in the indoor chemistry reacting with oxidants or being formed from secondary reactions. Some VOCs are classified as carcinogens and are associated with a variety of health effects. Characterizing and quantifying the VOCs in the indoor environments is of paramount importance in order to implement preventive measures to minimize the human exposure. A correct assessment of human exposure or characterization of emission sources and indoor activities requires appropriate and efficient methods for sampling and analysis. Therefore, this review focuses on the different methodologies for monitoring VOC that must be selected when a sampling plan is designed considering the objective of the measure. Selecting the most suitable procedures for assessing VOCs requires proper knowledge on the existing standards and off-line (including the selection of the sorbent media) and online instrumentation. Knowing the advantages and drawbacks of the different techniques available can help to plan future studies.","PeriodicalId":8100,"journal":{"name":"Applied Spectroscopy Reviews","volume":"110 1","pages":"625 - 674"},"PeriodicalIF":6.1,"publicationDate":"2022-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89292604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Techniques for measuring indoor radicals and radical precursors","authors":"E. G. Alvarez, N. Carslaw, S. Dusanter, Peter M. Edwards, Viktor Gábor Mihucz, D. Heard, J. Kleffmann, S. Nehr, C. Schoemacker, D. Venables","doi":"10.1080/05704928.2022.2087666","DOIUrl":"https://doi.org/10.1080/05704928.2022.2087666","url":null,"abstract":"Abstract Radicals and their precursors play a central role in the chemical transformations occurring in indoor air and on indoor surfaces. Such species include OH, HO2, peroxy radicals, nitrous acid, reactive chlorine species, NO3, N2O5, Criegee intermediates, and glyoxal and methylglyoxal. Recent advances on instrumental analysis and modeling studies have demonstrated the need for a wider range of measurements of radical species and their precursors in indoor air. This work reviews measurement techniques and provides considerations for indoor measurements of several radicals and their precursors. Techniques to determine the actinic flux are also presented owing to the relevance of photolytically-initiated processes indoors. This review is also intended to provide pointers for those wanting to learn more about measurements of radicals indoors.","PeriodicalId":8100,"journal":{"name":"Applied Spectroscopy Reviews","volume":"14 1","pages":"580 - 624"},"PeriodicalIF":6.1,"publicationDate":"2022-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81848347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Toward a better understanding of indoor air quality holistically integrating improved and new instrumental analytical techniques","authors":"N. Carslaw, V. Mihucz","doi":"10.1080/05704928.2022.2090952","DOIUrl":"https://doi.org/10.1080/05704928.2022.2090952","url":null,"abstract":"People in developed countries are estimated to spend 80–90% of their time indoors, where they can be exposed to poor air quality from numerous and diverse sources. These include mold growth and other microbial pollutants in humid air, to the chemical pollutants that result from emissions from human activities such as cooking, cleaning, smoking and home refurbishments. In fact, the concentrations of many air pollutants can be higher indoors than out, particularly following activities such as cleaning and cooking. Despite these facts, regulation for air pollution focuses mainly on outdoors and the indoor environment is much less well characterized or indeed regulated. With increasing climate change impacts expected in the future, related energy efficiency measures are making buildings considerably more airtight leading to the potential for even higher indoor air pollutant concentrations. Therefore, to reduce our exposure to air pollution, we must consider air pollutant sources and sinks in both the indoor and outdoor environments. We also need to consider the role of ventilation in mixing air between the two, in order to mitigate through appropriate building operation, use and design. Cost Action 17136 INDAIRPOLLNET (INDoor AIR POLLution NETwork) aims to improve our understanding of the cause of high concentrations of indoor air pollutants. It assembles experts in chemistry, biology, standardization, particulate matter characterization, toxicology, exposure assessment, building materials (including green materials), building physics and engineering and building design, performing laboratory and chamber experiments, modeling studies and measurements of relevance to indoor air quality, including outdoor air chemists. This Action is significantly advancing the field of indoor air pollution science, and highlighting future research areas, as well as aiming to to bridge the gap between research and business. In this way, we will be able to identify appropriate mitigation strategies that optimize indoor air quality. One of the objectives of our Action has been to explore the best ways to measure key indoor air pollutants given specific requirements (research question, available funds, building location and characteristics etc.). This special issue therefore summarizes the various measurement techniques that are currently available for indoor air measurements and the advantages and disadvantages of each for the indoor environment. For more information, please visit: https://indairpollnet.eu/","PeriodicalId":8100,"journal":{"name":"Applied Spectroscopy Reviews","volume":"1992 1","pages":"529 - 530"},"PeriodicalIF":6.1,"publicationDate":"2022-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82381483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Particulate matter indoors: a strategy to sample and monitor size-selective fractions","authors":"B. Bergmans, A. Cattaneo, R. M. Duarte, J. Gomes, D. Saraga, Mila Ródenas García, X. Querol, L. Liotta, John Safell, A. Spinazzè, S. Rovelli, F. Borghi, D. Cavallo, F. Villanueva, A. Di Gilio, T. Maggos, V. Mihucz","doi":"10.1080/05704928.2022.2088554","DOIUrl":"https://doi.org/10.1080/05704928.2022.2088554","url":null,"abstract":"Abstract Particulate matter (PM) is an important player in indoor air quality. Even though PM limit values are in force for more than a decade in Europe and reference methods are well in place for ambient air, measuring indoor PM concentration still remains a challenge and standardizing a measurement protocol is complex. As people stay most of their time indoors, indoor PM is of great interest in terms of public health, as concentration can be drastically different to the one outdoors. This review aims to provide key information to the indoor air monitoring communities, to better understand principal methods suitable for the analysis of indoor PM with their respective main influencing parameters. Advantages and drawbacks of each method are discussed and specific awareness is raised to avoid wrong data interpretation in specific situations. The inter-instrument deviation is also explained and, when possible, methods to correct are proposed.","PeriodicalId":8100,"journal":{"name":"Applied Spectroscopy Reviews","volume":"37 1","pages":"675 - 704"},"PeriodicalIF":6.1,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74065842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of standard and custom quartz tuning forks for quartz-enhanced photoacoustic spectroscopy gas sensing","authors":"Haoyang Lin, Yihua Liu, Leqing Lin, Wenguo Zhu, Xu Zhou, Y. Zhong, M. Giglio, A. Sampaolo, P. Patimisco, F. Tittel, Jianhui Yu, V. Spagnolo, Huadan Zheng","doi":"10.1080/05704928.2022.2070917","DOIUrl":"https://doi.org/10.1080/05704928.2022.2070917","url":null,"abstract":"Abstract A review on the design of quartz tuning forks and their applications in quartz-enhanced photoacoustic spectroscopy (QEPAS)-based trace gas sensors is reported. Standard commercial quartz tuning forks are used as sound wave transducers in the conventional QEPAS technique. With the development of QEPAS technology, the advent of custom quartz tuning forks has further improved the sensitivity level of QEPAS sensors. The manufacturing process of quartz tuning forks will be explained in detail in this review and the application of quartz tuning forks in QEPAS trace gas sensors in recent years will be summarized.","PeriodicalId":8100,"journal":{"name":"Applied Spectroscopy Reviews","volume":"1 1","pages":"562 - 584"},"PeriodicalIF":6.1,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90805475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Solid phase extraction combined with energy dispersive X-ray fluorescence spectrometry for multielement determination","authors":"Leonardo B. Guimarães, L. Teixeira, F. Amorim, F. Dias","doi":"10.1080/05704928.2022.2066687","DOIUrl":"https://doi.org/10.1080/05704928.2022.2066687","url":null,"abstract":"Abstract In this review, general aspects of the combination of the solid phase extraction (SPE) with energy dispersive X-ray fluorescence spectrometry (EDXRF) for multielement determination are presented. Derivations of SPE, such as dispersive solid phase extraction (DSPE), dispersive micro-solid phase extraction (DµSPE), and dispersive magnetic micro-solid phase extraction DM-µSPE are also presented, showing the possibility of direct analysis of the solid phase. The sorbents, advantages, disadvantages, and the analytical characteristics of the combination followed by direct determination of analytes retained on the solid phase are discussed. Furthermore, the perspectives of this analytical arrangement are presented.","PeriodicalId":8100,"journal":{"name":"Applied Spectroscopy Reviews","volume":"1 1","pages":"545 - 561"},"PeriodicalIF":6.1,"publicationDate":"2022-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90302100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Direct through-container Raman spectroscopic analyses of samples housed in glass and plastic containers: a review","authors":"Yoonjeong Lee, Jaejin Kim, Haeseong Jeong, Hoeil Chung","doi":"10.1080/05704928.2022.2051535","DOIUrl":"https://doi.org/10.1080/05704928.2022.2051535","url":null,"abstract":"Abstract This review summarizes current trends in direct through-container Raman spectroscopic analyses of housed samples without external sampling. Nonsampling Raman measurement is a relatively simple technique that avoids damaging or contaminating a sample’s commercial value by opening the container. The most demanding aspect of such techniques is the need to minimize or eliminate spectral interference from the container when analyzing the housed samples. To reduce the spectral peaks associated with the container, which can be either fluorescent or nonfluorescent, various measurement configurations, including spatially offset Raman scattering and/or algorithm-based background subtractions, have been employed. Here, reports on the former technique are categorized according to their analytical purposes into qualitative chemical identification and quantitative determination of component concentrations of housed samples. Studies in each group are further classified by container material, either glass or polymer (plastic), as the optical properties of each, as well as the dominance of their Raman spectral peaks, are different. Prospects for advances and unresolved issues in through-container Raman measurement are also discussed.","PeriodicalId":8100,"journal":{"name":"Applied Spectroscopy Reviews","volume":"22 1","pages":"509 - 524"},"PeriodicalIF":6.1,"publicationDate":"2022-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81829046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}